Futaba Yoshioka thought that all boys were noisy and annoying until she met Kou Tanaka in junior high. By the time she realized she truly loved him, he had already moved away due to family issues. Now, in high school, Kou has reappeared, but is he the same boy she once fell in love with?

Futaba Yoshioka meets her first love again in high school, but he seems different from the young boy she once knew. Kou asks Futaba out on a date at the summer festival. As the two grow closer, their classmate Toma Kikuchi turns his attention toward Futaba.