Ano Ko wa Dare

During the summer vacation period, temporary teacher Honoka Kimijima (Nagisa Shibuya) is in charge of a supplementary class. One day, a female student suddenly jumps off from the school rooftop and mysteriously dies in front of Honoka Kimijima. Honoka Kimijima notices a mystery of a student who is not supposed to be there. Honoka Kimijima has 5 students in her supplementary class including Hitomi Miura (Ikoi Hayase) and Takeru Maekawa (Soma Santoki). Honoka Kimijima soon uncovers a shocking truth of that kid.