Ayumu attends a high school festival at the school of his former classmate and first love, Tsubame, but Tsubame's friend, Ryuu, sees through his unfulfilled feelings for his first love, and he is harshly criticized by him.

Hurt, Ayumu tries to find a new love, but the person he meets almost kidnaps him. Ayumu is saved by Ryuu, who is unexpectedly ......?

A spin-off series of "Hatsukoi Note"!