Step 1: Go to Steam library and right click Deep Space Waifu: Nekomimi.
Step 2: Click properties and navigate to local files, click browse local files.
Step 3: Go to Steam/steamapps/common/Deep Space Waifu Nekomimi/ and click on the folder named "Deep Space Waifu Nekomimi_Data".
Step 4: Create a new text file named: nude.patch.

You need restart the game to apply the changes!