Akita Barley is a 16-year-old boy. He lives with his father, a novelist. Since his older cousin Yoko came to live with them, Mugi has been completely off his rocker. Every day he feels a bit confused. Then, a girl enters Mugi's high school, which is a boys' school. When Mugi goes to the beach with his best friend Tamio, he meets a new student, Nakano Yayoi. Mugi's heart races at the thought of going on a date with Yayoi, whom he has a crush on. A passionate message of youth, freshly depicting the awakening of love and sex!