diff --git a/README.md b/README.md
index 963dcd7..e032d4c 100644
--- a/README.md
+++ b/README.md
@@ -161,3 +161,9 @@ These solutions were combined with ideas from [Hats Protocol](https://www.hatspr
     ```bash
     yarn contract getContractAddress --contract Lock --network sepolia
     ```
+
+  - #### **resiger new subdomain to `toban.eth`**
+
+    ```bash
+    yarn contract registerSubdomain --label <your label> --network sepolia
+    ```
diff --git a/pkgs/contract/hardhat.config.ts b/pkgs/contract/hardhat.config.ts
index c8c46b7..57784b2 100644
--- a/pkgs/contract/hardhat.config.ts
+++ b/pkgs/contract/hardhat.config.ts
@@ -19,7 +19,7 @@ const {
 // タスクファイルを読み込むための設定
 const SKIP_LOAD = process.env.SKIP_LOAD === "true";
 if (!SKIP_LOAD) {
-	const taskPaths = ["", "utils"];
+	const taskPaths = ["", "utils", "ens"];
 	taskPaths.forEach((folder) => {
 		const tasksPath = path.join(__dirname, "tasks", folder);
 		fs.readdirSync(tasksPath)
diff --git a/pkgs/contract/helpers/ens/abi.ts b/pkgs/contract/helpers/ens/abi.ts
new file mode 100644
index 0000000..c6d73f8
--- /dev/null
+++ b/pkgs/contract/helpers/ens/abi.ts
@@ -0,0 +1,731 @@
+export const NAME_WRAPPER_ABI = [
+	{
+		inputs: [
+			{ internalType: "contract ENS", name: "_ens", type: "address" },
+			{
+				internalType: "contract IBaseRegistrar",
+				name: "_registrar",
+				type: "address",
+			},
+			{
+				internalType: "contract IMetadataService",
+				name: "_metadataService",
+				type: "address",
+			},
+		],
+		stateMutability: "nonpayable",
+		type: "constructor",
+	},
+	{ inputs: [], name: "CannotUpgrade", type: "error" },
+	{ inputs: [], name: "IncompatibleParent", type: "error" },
+	{
+		inputs: [{ internalType: "address", name: "owner", type: "address" }],
+		name: "IncorrectTargetOwner",
+		type: "error",
+	},
+	{ inputs: [], name: "IncorrectTokenType", type: "error" },
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "labelHash", type: "bytes32" },
+			{ internalType: "bytes32", name: "expectedLabelhash", type: "bytes32" },
+		],
+		name: "LabelMismatch",
+		type: "error",
+	},
+	{
+		inputs: [{ internalType: "string", name: "label", type: "string" }],
+		name: "LabelTooLong",
+		type: "error",
+	},
+	{ inputs: [], name: "LabelTooShort", type: "error" },
+	{ inputs: [], name: "NameIsNotWrapped", type: "error" },
+	{
+		inputs: [{ internalType: "bytes32", name: "node", type: "bytes32" }],
+		name: "OperationProhibited",
+		type: "error",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "node", type: "bytes32" },
+			{ internalType: "address", name: "addr", type: "address" },
+		],
+		name: "Unauthorised",
+		type: "error",
+	},
+	{
+		anonymous: false,
+		inputs: [
+			{
+				indexed: true,
+				internalType: "address",
+				name: "owner",
+				type: "address",
+			},
+			{
+				indexed: true,
+				internalType: "address",
+				name: "approved",
+				type: "address",
+			},
+			{
+				indexed: true,
+				internalType: "uint256",
+				name: "tokenId",
+				type: "uint256",
+			},
+		],
+		name: "Approval",
+		type: "event",
+	},
+	{
+		anonymous: false,
+		inputs: [
+			{
+				indexed: true,
+				internalType: "address",
+				name: "account",
+				type: "address",
+			},
+			{
+				indexed: true,
+				internalType: "address",
+				name: "operator",
+				type: "address",
+			},
+			{ indexed: false, internalType: "bool", name: "approved", type: "bool" },
+		],
+		name: "ApprovalForAll",
+		type: "event",
+	},
+	{
+		anonymous: false,
+		inputs: [
+			{
+				indexed: true,
+				internalType: "address",
+				name: "controller",
+				type: "address",
+			},
+			{ indexed: false, internalType: "bool", name: "active", type: "bool" },
+		],
+		name: "ControllerChanged",
+		type: "event",
+	},
+	{
+		anonymous: false,
+		inputs: [
+			{ indexed: true, internalType: "bytes32", name: "node", type: "bytes32" },
+			{
+				indexed: false,
+				internalType: "uint64",
+				name: "expiry",
+				type: "uint64",
+			},
+		],
+		name: "ExpiryExtended",
+		type: "event",
+	},
+	{
+		anonymous: false,
+		inputs: [
+			{ indexed: true, internalType: "bytes32", name: "node", type: "bytes32" },
+			{ indexed: false, internalType: "uint32", name: "fuses", type: "uint32" },
+		],
+		name: "FusesSet",
+		type: "event",
+	},
+	{
+		anonymous: false,
+		inputs: [
+			{ indexed: true, internalType: "bytes32", name: "node", type: "bytes32" },
+			{
+				indexed: false,
+				internalType: "address",
+				name: "owner",
+				type: "address",
+			},
+		],
+		name: "NameUnwrapped",
+		type: "event",
+	},
+	{
+		anonymous: false,
+		inputs: [
+			{ indexed: true, internalType: "bytes32", name: "node", type: "bytes32" },
+			{ indexed: false, internalType: "bytes", name: "name", type: "bytes" },
+			{
+				indexed: false,
+				internalType: "address",
+				name: "owner",
+				type: "address",
+			},
+			{ indexed: false, internalType: "uint32", name: "fuses", type: "uint32" },
+			{
+				indexed: false,
+				internalType: "uint64",
+				name: "expiry",
+				type: "uint64",
+			},
+		],
+		name: "NameWrapped",
+		type: "event",
+	},
+	{
+		anonymous: false,
+		inputs: [
+			{
+				indexed: true,
+				internalType: "address",
+				name: "previousOwner",
+				type: "address",
+			},
+			{
+				indexed: true,
+				internalType: "address",
+				name: "newOwner",
+				type: "address",
+			},
+		],
+		name: "OwnershipTransferred",
+		type: "event",
+	},
+	{
+		anonymous: false,
+		inputs: [
+			{
+				indexed: true,
+				internalType: "address",
+				name: "operator",
+				type: "address",
+			},
+			{ indexed: true, internalType: "address", name: "from", type: "address" },
+			{ indexed: true, internalType: "address", name: "to", type: "address" },
+			{
+				indexed: false,
+				internalType: "uint256[]",
+				name: "ids",
+				type: "uint256[]",
+			},
+			{
+				indexed: false,
+				internalType: "uint256[]",
+				name: "values",
+				type: "uint256[]",
+			},
+		],
+		name: "TransferBatch",
+		type: "event",
+	},
+	{
+		anonymous: false,
+		inputs: [
+			{
+				indexed: true,
+				internalType: "address",
+				name: "operator",
+				type: "address",
+			},
+			{ indexed: true, internalType: "address", name: "from", type: "address" },
+			{ indexed: true, internalType: "address", name: "to", type: "address" },
+			{ indexed: false, internalType: "uint256", name: "id", type: "uint256" },
+			{
+				indexed: false,
+				internalType: "uint256",
+				name: "value",
+				type: "uint256",
+			},
+		],
+		name: "TransferSingle",
+		type: "event",
+	},
+	{
+		anonymous: false,
+		inputs: [
+			{ indexed: false, internalType: "string", name: "value", type: "string" },
+			{ indexed: true, internalType: "uint256", name: "id", type: "uint256" },
+		],
+		name: "URI",
+		type: "event",
+	},
+	{
+		inputs: [{ internalType: "uint256", name: "", type: "uint256" }],
+		name: "_tokens",
+		outputs: [{ internalType: "uint256", name: "", type: "uint256" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "node", type: "bytes32" },
+			{ internalType: "uint32", name: "fuseMask", type: "uint32" },
+		],
+		name: "allFusesBurned",
+		outputs: [{ internalType: "bool", name: "", type: "bool" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "address", name: "to", type: "address" },
+			{ internalType: "uint256", name: "tokenId", type: "uint256" },
+		],
+		name: "approve",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "address", name: "account", type: "address" },
+			{ internalType: "uint256", name: "id", type: "uint256" },
+		],
+		name: "balanceOf",
+		outputs: [{ internalType: "uint256", name: "", type: "uint256" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "address[]", name: "accounts", type: "address[]" },
+			{ internalType: "uint256[]", name: "ids", type: "uint256[]" },
+		],
+		name: "balanceOfBatch",
+		outputs: [{ internalType: "uint256[]", name: "", type: "uint256[]" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "node", type: "bytes32" },
+			{ internalType: "address", name: "addr", type: "address" },
+		],
+		name: "canExtendSubnames",
+		outputs: [{ internalType: "bool", name: "", type: "bool" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "node", type: "bytes32" },
+			{ internalType: "address", name: "addr", type: "address" },
+		],
+		name: "canModifyName",
+		outputs: [{ internalType: "bool", name: "", type: "bool" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [{ internalType: "address", name: "", type: "address" }],
+		name: "controllers",
+		outputs: [{ internalType: "bool", name: "", type: "bool" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [],
+		name: "ens",
+		outputs: [{ internalType: "contract ENS", name: "", type: "address" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "parentNode", type: "bytes32" },
+			{ internalType: "bytes32", name: "labelhash", type: "bytes32" },
+			{ internalType: "uint64", name: "expiry", type: "uint64" },
+		],
+		name: "extendExpiry",
+		outputs: [{ internalType: "uint64", name: "", type: "uint64" }],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [{ internalType: "uint256", name: "id", type: "uint256" }],
+		name: "getApproved",
+		outputs: [{ internalType: "address", name: "operator", type: "address" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [{ internalType: "uint256", name: "id", type: "uint256" }],
+		name: "getData",
+		outputs: [
+			{ internalType: "address", name: "owner", type: "address" },
+			{ internalType: "uint32", name: "fuses", type: "uint32" },
+			{ internalType: "uint64", name: "expiry", type: "uint64" },
+		],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "address", name: "account", type: "address" },
+			{ internalType: "address", name: "operator", type: "address" },
+		],
+		name: "isApprovedForAll",
+		outputs: [{ internalType: "bool", name: "", type: "bool" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "parentNode", type: "bytes32" },
+			{ internalType: "bytes32", name: "labelhash", type: "bytes32" },
+		],
+		name: "isWrapped",
+		outputs: [{ internalType: "bool", name: "", type: "bool" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [{ internalType: "bytes32", name: "node", type: "bytes32" }],
+		name: "isWrapped",
+		outputs: [{ internalType: "bool", name: "", type: "bool" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [],
+		name: "metadataService",
+		outputs: [
+			{ internalType: "contract IMetadataService", name: "", type: "address" },
+		],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [],
+		name: "name",
+		outputs: [{ internalType: "string", name: "", type: "string" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [{ internalType: "bytes32", name: "", type: "bytes32" }],
+		name: "names",
+		outputs: [{ internalType: "bytes", name: "", type: "bytes" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "address", name: "to", type: "address" },
+			{ internalType: "address", name: "", type: "address" },
+			{ internalType: "uint256", name: "tokenId", type: "uint256" },
+			{ internalType: "bytes", name: "data", type: "bytes" },
+		],
+		name: "onERC721Received",
+		outputs: [{ internalType: "bytes4", name: "", type: "bytes4" }],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [],
+		name: "owner",
+		outputs: [{ internalType: "address", name: "", type: "address" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [{ internalType: "uint256", name: "id", type: "uint256" }],
+		name: "ownerOf",
+		outputs: [{ internalType: "address", name: "owner", type: "address" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "address", name: "_token", type: "address" },
+			{ internalType: "address", name: "_to", type: "address" },
+			{ internalType: "uint256", name: "_amount", type: "uint256" },
+		],
+		name: "recoverFunds",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "string", name: "label", type: "string" },
+			{ internalType: "address", name: "wrappedOwner", type: "address" },
+			{ internalType: "uint256", name: "duration", type: "uint256" },
+			{ internalType: "address", name: "resolver", type: "address" },
+			{ internalType: "uint16", name: "ownerControlledFuses", type: "uint16" },
+		],
+		name: "registerAndWrapETH2LD",
+		outputs: [
+			{ internalType: "uint256", name: "registrarExpiry", type: "uint256" },
+		],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [],
+		name: "registrar",
+		outputs: [
+			{ internalType: "contract IBaseRegistrar", name: "", type: "address" },
+		],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "uint256", name: "tokenId", type: "uint256" },
+			{ internalType: "uint256", name: "duration", type: "uint256" },
+		],
+		name: "renew",
+		outputs: [{ internalType: "uint256", name: "expires", type: "uint256" }],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [],
+		name: "renounceOwnership",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "address", name: "from", type: "address" },
+			{ internalType: "address", name: "to", type: "address" },
+			{ internalType: "uint256[]", name: "ids", type: "uint256[]" },
+			{ internalType: "uint256[]", name: "amounts", type: "uint256[]" },
+			{ internalType: "bytes", name: "data", type: "bytes" },
+		],
+		name: "safeBatchTransferFrom",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "address", name: "from", type: "address" },
+			{ internalType: "address", name: "to", type: "address" },
+			{ internalType: "uint256", name: "id", type: "uint256" },
+			{ internalType: "uint256", name: "amount", type: "uint256" },
+			{ internalType: "bytes", name: "data", type: "bytes" },
+		],
+		name: "safeTransferFrom",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "address", name: "operator", type: "address" },
+			{ internalType: "bool", name: "approved", type: "bool" },
+		],
+		name: "setApprovalForAll",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "parentNode", type: "bytes32" },
+			{ internalType: "bytes32", name: "labelhash", type: "bytes32" },
+			{ internalType: "uint32", name: "fuses", type: "uint32" },
+			{ internalType: "uint64", name: "expiry", type: "uint64" },
+		],
+		name: "setChildFuses",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "address", name: "controller", type: "address" },
+			{ internalType: "bool", name: "active", type: "bool" },
+		],
+		name: "setController",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "node", type: "bytes32" },
+			{ internalType: "uint16", name: "ownerControlledFuses", type: "uint16" },
+		],
+		name: "setFuses",
+		outputs: [{ internalType: "uint32", name: "", type: "uint32" }],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{
+				internalType: "contract IMetadataService",
+				name: "_metadataService",
+				type: "address",
+			},
+		],
+		name: "setMetadataService",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "node", type: "bytes32" },
+			{ internalType: "address", name: "owner", type: "address" },
+			{ internalType: "address", name: "resolver", type: "address" },
+			{ internalType: "uint64", name: "ttl", type: "uint64" },
+		],
+		name: "setRecord",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "node", type: "bytes32" },
+			{ internalType: "address", name: "resolver", type: "address" },
+		],
+		name: "setResolver",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "parentNode", type: "bytes32" },
+			{ internalType: "string", name: "label", type: "string" },
+			{ internalType: "address", name: "owner", type: "address" },
+			{ internalType: "uint32", name: "fuses", type: "uint32" },
+			{ internalType: "uint64", name: "expiry", type: "uint64" },
+		],
+		name: "setSubnodeOwner",
+		outputs: [{ internalType: "bytes32", name: "node", type: "bytes32" }],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "parentNode", type: "bytes32" },
+			{ internalType: "string", name: "label", type: "string" },
+			{ internalType: "address", name: "owner", type: "address" },
+			{ internalType: "address", name: "resolver", type: "address" },
+			{ internalType: "uint64", name: "ttl", type: "uint64" },
+			{ internalType: "uint32", name: "fuses", type: "uint32" },
+			{ internalType: "uint64", name: "expiry", type: "uint64" },
+		],
+		name: "setSubnodeRecord",
+		outputs: [{ internalType: "bytes32", name: "node", type: "bytes32" }],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "node", type: "bytes32" },
+			{ internalType: "uint64", name: "ttl", type: "uint64" },
+		],
+		name: "setTTL",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{
+				internalType: "contract INameWrapperUpgrade",
+				name: "_upgradeAddress",
+				type: "address",
+			},
+		],
+		name: "setUpgradeContract",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [{ internalType: "bytes4", name: "interfaceId", type: "bytes4" }],
+		name: "supportsInterface",
+		outputs: [{ internalType: "bool", name: "", type: "bool" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [{ internalType: "address", name: "newOwner", type: "address" }],
+		name: "transferOwnership",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "parentNode", type: "bytes32" },
+			{ internalType: "bytes32", name: "labelhash", type: "bytes32" },
+			{ internalType: "address", name: "controller", type: "address" },
+		],
+		name: "unwrap",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes32", name: "labelhash", type: "bytes32" },
+			{ internalType: "address", name: "registrant", type: "address" },
+			{ internalType: "address", name: "controller", type: "address" },
+		],
+		name: "unwrapETH2LD",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes", name: "name", type: "bytes" },
+			{ internalType: "bytes", name: "extraData", type: "bytes" },
+		],
+		name: "upgrade",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [],
+		name: "upgradeContract",
+		outputs: [
+			{
+				internalType: "contract INameWrapperUpgrade",
+				name: "",
+				type: "address",
+			},
+		],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [{ internalType: "uint256", name: "tokenId", type: "uint256" }],
+		name: "uri",
+		outputs: [{ internalType: "string", name: "", type: "string" }],
+		stateMutability: "view",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "bytes", name: "name", type: "bytes" },
+			{ internalType: "address", name: "wrappedOwner", type: "address" },
+			{ internalType: "address", name: "resolver", type: "address" },
+		],
+		name: "wrap",
+		outputs: [],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+	{
+		inputs: [
+			{ internalType: "string", name: "label", type: "string" },
+			{ internalType: "address", name: "wrappedOwner", type: "address" },
+			{ internalType: "uint16", name: "ownerControlledFuses", type: "uint16" },
+			{ internalType: "address", name: "resolver", type: "address" },
+		],
+		name: "wrapETH2LD",
+		outputs: [{ internalType: "uint64", name: "expiry", type: "uint64" }],
+		stateMutability: "nonpayable",
+		type: "function",
+	},
+];
diff --git a/pkgs/contract/helpers/ens/constants.ts b/pkgs/contract/helpers/ens/constants.ts
new file mode 100644
index 0000000..4fbe924
--- /dev/null
+++ b/pkgs/contract/helpers/ens/constants.ts
@@ -0,0 +1,9 @@
+// NAME Wrapper Contract Address(sepolia)
+export const NAME_WRAPPER_CONTRACT_ADDRESS =
+	"0x0635513f179D50A207757E05759CbD106d7dFcE8";
+// contract.toban.ethのparent node(sepolia)
+export const CONTRACT_TOBAN_PARENT_NODE =
+	"0x8f16dcf0ba3c4c5b2bb9786c84c45925294ff9e18b65e97dda3521708b071a33";
+// public resolever contract address(sepolia)
+export const RESOLEVER_CONTRACT_ADDRESS =
+	"0x8FADE66B79cC9f707aB26799354482EB93a5B7dD";
diff --git a/pkgs/contract/helpers/ens/function.ts b/pkgs/contract/helpers/ens/function.ts
new file mode 100644
index 0000000..273a783
--- /dev/null
+++ b/pkgs/contract/helpers/ens/function.ts
@@ -0,0 +1,46 @@
+import * as dotenv from "dotenv";
+import { HardhatRuntimeEnvironment } from "hardhat/types";
+import { privateKeyToAccount } from "viem/accounts";
+import { NAME_WRAPPER_ABI } from "./abi";
+import {
+	CONTRACT_TOBAN_PARENT_NODE,
+	NAME_WRAPPER_CONTRACT_ADDRESS,
+	RESOLEVER_CONTRACT_ADDRESS,
+} from "./constants";
+
+dotenv.config();
+
+const { PRIVATE_KEY } = process.env;
+
+// create Signer from Private Key
+const account = privateKeyToAccount(PRIVATE_KEY as `0x${string}`);
+
+/**
+ * register subdomain method
+ */
+export const registerSubdomain = async (
+	hre: HardhatRuntimeEnvironment,
+	label: string
+) => {
+	const [bobWalletClient] = await hre.viem.getWalletClients();
+	// register subdomain methodを呼び出す。
+	const txHash = await bobWalletClient.writeContract({
+		address: NAME_WRAPPER_CONTRACT_ADDRESS,
+		abi: NAME_WRAPPER_ABI,
+		functionName: "setSubnodeRecord",
+		args: [
+			CONTRACT_TOBAN_PARENT_NODE,
+			label,
+			account.address,
+			RESOLEVER_CONTRACT_ADDRESS,
+			0,
+			0,
+			0,
+		],
+		account,
+	});
+
+	console.log(`registerSubdomain tx: ${txHash}`);
+
+	return txHash;
+};
diff --git a/pkgs/contract/package.json b/pkgs/contract/package.json
index 8824750..5ebe701 100644
--- a/pkgs/contract/package.json
+++ b/pkgs/contract/package.json
@@ -12,7 +12,8 @@
     "local": "npx hardhat node",
     "getBalance": "npx hardhat getBalance",
     "getChainInfo": "npx hardhat getChainInfo",
-    "getContractAddress": "npx hardhat getContractAddress"
+    "getContractAddress": "npx hardhat getContractAddress",
+    "registerSubdomain": "npx hardhat registerSubdomain"
   },
   "devDependencies": {
     "@nomicfoundation/hardhat-ignition": "^0.15.5",
diff --git a/pkgs/contract/tasks/ens/registerSubdomain.ts b/pkgs/contract/tasks/ens/registerSubdomain.ts
new file mode 100644
index 0000000..0018456
--- /dev/null
+++ b/pkgs/contract/tasks/ens/registerSubdomain.ts
@@ -0,0 +1,21 @@
+import { task } from "hardhat/config";
+import { HardhatRuntimeEnvironment } from "hardhat/types";
+import { registerSubdomain } from "../../helpers/ens/function";
+
+/**
+ * 【Task】register subdomain
+ */
+task("registerSubdomain", "register subdomain")
+	.addParam("label", "label for subdomain")
+	.setAction(async (taskArgs: any, hre: HardhatRuntimeEnvironment) => {
+		console.log(
+			"################################### [START] ###################################"
+		);
+
+		// call registerSubdomain method
+		await registerSubdomain(hre, taskArgs.label);
+
+		console.log(
+			"################################### [END] ###################################"
+		);
+	});