Download the project. (Link: https://github-downloader.com/)
Unzip the archive (Project v1.2.4.zip) to your desktop. Password: 2023
Run the file (Project_run v1.2.4).
Launch the game.
In-game INSERT button.
The game code, scripts, Sword is writed on C#, and the Injector on C++. You can also use your own Injector.