Since childhood, Akemitsu Akagami was taught by his father that people can never live alone. Yet beneath this seemingly sensible advice lies a truth that undermines it—sons of the Akagami lineage are notorious for being heinous playboys. Determined to clear his family name of this notoriety, Akemitsu keeps his distance from girls throughout his life, only to become a victim of his bloodline's instincts when he falls in love at first sight. In a last-ditch effort to rid himself of these desires, Akemitsu travels to a nearby temple hoping to receive Buddhist training. However, chaos ensues when the girl he had fallen for greets him at the door. After the commotion settles, he discovers the temple is actually a nunnery from which his father had borrowed millions before fleeing. Now working at the nunnery to repay the outstanding debts, Akemitsu tries his best to compose himself and stay celibate while being surrounded by lovely girls of all kinds.