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 Sakaeâ€™s idol as well as his pillar of support. However, the â€œRyuu-senseiâ€ 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?