Takami and Akira are childhood friends who took piano lessons together when they were little. Takami was a tomboy who grew up among four brothers, while Akira was a cute, quiet boy who was skilled in piano more so than Takami. They grew up like siblings -at least, that is how Takami felt. Years later, things began to change when Akira suddenly kisses and confesses his feelings for Takami. She is startled by Akira's unexpected affection and doesn't know how to react…until Takumi begins to realize that her feelings for Akira are beginning to change....

Takami gets a part-time waitressing job at Club Blue. But what's Akira's motive when he decides to work there too? Later, when their piano school gets a new teacher, Akira is less than thrilled…and the teacher's incessant flirting with Takami is only part of the problem. And when Takami and Akira enter the same piano contest, will their friendship prove to be stronger than their musical rivalry?...