The female student who plays chess is proud and doesn't want to lose to others. She succumbs to the demands of a middle-aged man's penis and becomes a sex toy with a craving for penetration. (Konon-068)

Kanon is my girlfriend, and also the granddaughter of a famous Go player. Despite her young age, she possesses the strength of a female Go player recognized by the league. In the school club, she declared herself to be only a student, but lost to the club advisor, Mr. Hane. Unwilling to accept defeat, she demanded a rematch, and Mr. Hane suggested they play at his house that evening…