From the blog "Clephas' VN home"
This game is the second project made by Samoyed Smile, a subsidiary of the same corporation that owns Softhouse-seal. This is, incidentally, why the game has the really crappy lip-sync and sex animations so familiar from that company's works. That said, this company is not a nukige company, despite the lateral relationship.
The game starts with a young teacher, Haruki, teaching a class of dropouts at a night school. Haruki, having had horrible experiences at his first teaching job, has a