Production Companies: Shochiku , Booster Project , PEEK A BOO films , Shochiku Studio , Shochiku MediaWorX , Kinoshita Group , Yoshimoto Kogyo , Shochiku Broadcasting .
Overview: 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.
, Booster Project 
, PEEK A BOO films , Shochiku Studio 
, Shochiku MediaWorX , Kinoshita Group 
, Yoshimoto Kogyo 
, Shochiku Broadcasting 
.
