Sakae Sugiura wants to become a teacher, and finally gets assigned to an elementary school. There, Sakae reunites with Ryuuji Fukada, who was his teacher when he was a student there. Sakae always looked up to Fukada, who acted like a life-support for him at times. Their meeting again surprises Sakae, and he feels hesitant due to how much Fukada seems to have changed. But then, his feelings toward Fukada gradually change...

Aiming to become a sensei like his former sensei, Sugiura Sakae came to an elementary school as a contract teacher. Coincidentally, his former sensei, Fukada Ryuuji, is currently teaching here. Ryuu sensei is Sakae’s idol as well as his pillar of support. However, the “Ryuu-sensei” he once so admired, is totally different now. Feeling bothered, Sakae slowly realizes that his feelings for sensei have become love. But what about Ryuu-sensei?