Also known as: 卒業(ゲーム)
A series of bishoujo simulation games.
List of main titles
- Sotsugyou ~Graduation~
- Sotsugyou II ~Neo Graduation~
- Sotsugyou III ~Wedding Bell~
- Sotsugyou ~Next Graduation~ (Windows) / ~2nd Graduation~ (PS2 port)
List of spin-off titles
- Sotsugyou M (media mix project)
- Sotsugyou Cross World (play-by-mail game)
- Kekkon ~Marriage~
- Sotsugyou Vacation