No5 Moshimo Kyonyuu Kasshoku Onna Kyoushi ga Ochita Nara...

Game rip of the video game "No5: If the Busty Suntanned Teacher had a Moral Collapse..." from studio nanamichan/Poseidon, released in 2012, tells about a perverted boy who fell for his own teacher. That's understandable - Chihiro-sensei is incredibly sexy and perverted in her own way. Not many men can resist her charm. Even teachers constantly hit on our heroine.