I spent over 10 days creating an easily extensible sandbox, and as someone with no basic knowledge of Python, I think I did a pretty good job. So there is very little in this version, I didn't even add active girls to the scene. If you are expecting more, please wait for the next update.

Note: You'd better save a file before entering the sandbox, I changed some things in v0.3 and you may encounter errors.
Sandbox demo.
55+ images.
1 Hilirika event.
1 Lavie event.
Added information for some characters.