Adult PC Game: An Unconventional School v0.4.1 by LulluDev Archive

Overview:
Follow the romantic lives of various characters, some of whom are just starting out in the world of love, others who are hiding secrets they wouldn't want their friends to know about and others who just like to have fun.
Although the game follows a linear line, you can choose not to see any events that are not to your taste (Like NTR events)