Gitei no Haitoku Shineitai -Onna-tachi no Kyouen- by Goku-Fero - Adult Sex Game

The main character Yuri worked as a teacher, her husband's friend and lived happily with Kazuya at her brother-in-law's clown school. Yuri discovers sexual intercourse with women at school . And one day in rough sex love a girl with Kazuya.