Taiyou Hiiragi (19), an idol, was troubled by the fact that he is, contrary to his name, a rainy man.

Then, at the correspondence high school he attends, he meets Amemiya (17), who is also, despite his name, a sunny guy.

This is a light BL between a younger student and an older idol, in which the two, who are different in age and occupation, deepen their interaction in the form of classmates.

Taiyou = Sun Ame = Rain