Hinata Homma

Kohei, a deaf university student, meets Taichi, an optimistic classmate who volunteers to take notes for Kohei's lectures in exchange for food. As they grow closer, their friendship blossoms into love.

The Fourth Industrial Revolution has led to the development of cutting-edge technologies that have rapidly evolved the world. As a result, schools have begun incorporating these technologies into their curriculum, leaving behind the ways of the old. One such institution is the elite Yuyu Girls' Vocational High School, where both Serufu Yua and her childhood friend, Miku "Purin" Suride, have applied. Although the tech-savvy Purin is accepted to Yuyu High, the accident-prone Serufu is rejected and enters the traditional Gatagata Girls' High School instead, driving a wedge into their friendship.

Early summer, Maebara Keiichi had just moved to a remote mountain village. As he becomes close friends with a group of girls, he was enjoying his life in the village. However, when he starts to become suspicious that Ryūgū Rena, Sonozaki Mion and the others that Keiichi trusted may be deeply involved in successive murders that occur every summer, the situation around Keiichi gradually starts to turn. As if the girls' characters had completely changed, a sewing needle is found in his food, he is chased by mysterious men, and is involved in an accident that could have killed him. He could no longer trust anyone, and then one mystery leads to another, bringing out a shockingly bloody ending.

To get by, Takuya and Mamoru pose as women in an online scheme, but when they try to leave this life, they must rely on their dangerous mentor for help.