Souichi Okita is a second year student at Haramachida University. Since entering school, he has been dumped by a girl who attacked him eight times. He wasn't popular at all, but when a girl moved into the room next door, his life changed completely. Her neighbor is Koto Sawamura, her childhood friend. It was the first reunion since junior high school graduation. Two people who grew up to be 20-year-old men and women. How will the childhood friendship develop...!?