A story about three former broadcasting club members who gathered for the first time in several years to trace the memories of their days at the school building of their old school, Shinome Girls' High School, which was decided to be demolished.
Seiichi is the owner of a flower shop. He enjoys his peaceful single life. Kiho runs the ramen restaurant left to her by her father, but she's thinking of closing it.
As meninas da Academia Achiga de Nara derrotaram a Escola de Ensino Médio Bansei durante o regional de mahjong. A escola avançou para as semifinais nacional, mas infelizmente perdeu a final do campeonato e o clube foi dissolvido. Depois de seis anos, a estudante da escola elementar Shizune Takakamo fará amizade com a recém-chegada Nodoka Haramura. As duas garotas entrarão na Achiga, mas Nodoka mudará de escola durante o segundo ano. Desde então, tem se passado um ano, e um dia Shizuno vê na televisão Nodoka vencer o campeonato nacional de mahjong para as escolas individuais. Foi aí que Shizune decidiu reviver o clube de mahjong da Academia Achiga.
Arata Kaizaki is 27-years-old and unemployed. He quit his prior job after working for the company for 3 months. Arata Kaizaki decides to take part in a research program. He takes medication that makes him look younger and he is to attend high school for a year. There, he falls in love with female high school student Chizuru Hishiro.
Usobuki Tadashi usa ternos pretos, tem olhos vermelhos e é um assassino. Ninguém sabe sobre o seu passado. Ele recebe solicitações de clientes que estão cheios de desejo ou ódio. Usobuki executa o seu trabalho usando métodos como o poder da sugestão e, consequentemente, sai ileso de seus crimes.
Hana Ichii attends a school that she admired since she was a child. One day, she wakes up and finds herself locked in a cage with her classmates. They are forced to take part in a survival game using their cellphones.