During the summer vacation period, temporary teacher Honoka Kimijima is in charge of a supplementary class. One day, a female student suddenly jumps off from the school rooftop and dies in front of Honoka Kimijima. Then she notices a mystery student who is not supposed to be there.
Nagisa Shibuya
Honoka Kimijima
Hayase Ikoi
Hitomi Miura
Soma Santoki
Takeru Maekawa
Towa Araki
Shota Sometani
Satoru Matsuo
Makita Sports
Tomoko Hoshi
Sana Takaya
