Makoto Kambayashi, a former motorcycle gang leader known for his strength and virtue, now leads an honest life, though he remains a virgin. His first kiss was stolen in high school by Chigusa Tokuyama, an honored student. Years later, Makoto encounters Tokuyama again, who is now a detective. Tokuyama claims to be able to identify virgins by sight, and their reunion takes an unexpected turn when Tokuyama pushes Makoto down, leading to a complex rekindling of their past dynamic.
