Right before summer vacation, a "forbidden game" is secretly played at a high school. After some students take part in it, their ordinary days begin to change, and before long, a "certain incident" occurs. Taking the situation seriously, the school brings in a counselor, Koharu, to provide mental care for the students who witnessed the incident. However, one of the students who played the "game" turns out to be Koharu's sister, Nanami. One by one, the students are drawn into bizarre phenomena.

Genres

Cast

Chinzei Suzuka

Koharu Hirase

Anna Hoshino

Nanami Hirase

Riku Onishi

Jotaro Chiba

Rei Mukai

Maki Nishino

Mau Oguni

Iori Okuyama

Hanna Muro

Daia Kurotaki

Shota Sometani

Marina Yoshimi

Tomoko Hoshi

Sana

Hayase Ikoi

Hitomi Miura