Koukou Kyoushi ~Memories of Summer~

Yamashina Shiroh is a high school teacher of physics in a private boys' school, which has just let out for summer vacation. Many attractive men and boys appear around Shiroh: former students, fellow teachers, a neighbor... Can Shiroh find a love over the summer vacation, or perhaps regain the memories of a past summer romance he's long forced from his mind?

[from Boys' Love Games Headquarters]