Surrounded by the blue sea and green mountains, the protagonist moved there. For him, who has been struggling with the competitive society of the city, this is not a place to retreat, but a new battlefield.

――It was supposed to be.

But, there was no such thing. From the first day at his new school, he is taken out by his classmates, enjoying what they do, and being inspired by them. Meanwhile, the three girls that the protagonist met also changed him again. A bright and lively kouhai who has a shocking encounter, Amahara Kogane. A shrine maiden senpai who looks out of this world but is surprisingly mischievous, Kaminashi Yashiro. A tsundere girl and daughter of the landlord who takes care of the protagonist, Ainokura Kazuha. In the vividness of summer, the love that is born between them will eventually turns into a deep love. Friendship and love are interwoven. A love story that only students can tell begins.