Onna Kyoushi Suzune ~Itoko to no Himitsu na Kankei~ by WendyBell - Adult Sex Game

Yuji's classroom teacher is his cousin, Suzune. He loves her, but he can't tell his love to her because they are relatives. One day, Suzune starts to live with Yuji's house for a week since her apartment is being remodeled. One night, she comes back to his house drunkenly, and pushes him over...