If you own the Steam version, it is censored by default. You can find an official 18+ restoration patch on Denpasoft. How to Apply the Patch: Extract the patch files to your desktop.
The story features three main heroines: Mint (the angel), Lily (a half-demon), and Cacao .
For technical issues like a black screen during the opening movie, users on the Steam Community Hub suggest ensuring your graphics drivers are updated to support OpenGL 3.3 or higher. NEKO-MIMI SWEET HOUSEMATES Vol. 1 on Steam