That interesting. I've always used Koikatsu and Honey Select for strictly animations. Never have I used it for a Ren'Py.... I have some frozen character models I never used... I might make a Ren'Py.
This was made with Koikatsu game assets wasn't it? The school, hair, eyes and clothes look way to much like assets from Illusions Koikatsu Party. hell some of the characters look like the games built in character prebuilds.