Kazuha Aklyoshi is the eldest of six children. Highly responsible and irresistibly cute, Kazuha is also something of a tomboy who never allows her softer side to show through. Then she meets Mizushima, the first guy to treat her more like a girl than one of the guys. At first, Kazuha has a hard time opening up. But a series of life-changing events -- both traumatic and wonderful -- inevitably force these two closer together.