Forbidden Erotic Romance Drama Between Female Student and Teacher: It started when Rikka, the student who had a crush on him, pressured him and he gave her a spare key. For a month during summer break, Rikka went to the teacher's house, and they were in a cohabitation-like relationship. They made hamburgers together, squeezed into the narrow bathtub together, and had sex every day. The ephemeral, sad, and sweet sensual cohabitation life of the two that they can't tell anyone, and that might end someday.
