diff --git a/W3-1/contracts/TokenVault-draft.sol b/W3-1/contracts/TokenVault-draft.sol
new file mode 100644
index 0000000..5287e0a
--- /dev/null
+++ b/W3-1/contracts/TokenVault-draft.sol
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
+
+contract TokenVault {
+    IERC20 public myToken;
+    mapping(address => uint256) public deposits;
+
+    constructor(address corrorTokenAddress) {
+        myToken = IERC20(corrorTokenAddress);
+    }
+
+    function deposit(uint256 amount) public {
+        require(myToken.transferFrom(msg.sender, address(this), amount), "Transfer failed");
+        deposits[msg.sender] += amount;
+    }
+
+    function withdraw(uint256 amount) public {
+        require(deposits[msg.sender] > amount, "Insufficient balance");
+        deposits[msg.sender] -= amount;
+        require(myToken.transfer(msg.sender, amount), "Transfer failed");
+    }
+}
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