Nina is in love with her kind, handsome neighbor Kyosuke, and though he's off to high school, she doesn't see their friendly relationship changing much at all. But soon enough, Nina finds Kyosuke kissing another girl, his classmate. Will the one-year difference change them after all? Or can she work up the courage to confess and win him over once and for all? A sweet story of the joys and pains of first love.