Teru is a boxer and rookie of the year contender. Ben has had an excellent memory since birth but struggles to communicate with others. The two of them grew up like brothers in the same housing complex. Ben is happy simply imitating Teru because to Ben, Teru is a hero. However, Teru loses to Kitazawa in the deciding match for the title of rookie of the year, and then pretends as if nothing has happened and drowns himself in partying.
Ryōsuke Yoshii, an ordinary reseller, carelessly earns grudges by people and becomes entangled in a life-threatening struggle.
Naoto was ignored by other people. During his school days, Chihiro was the first person who called his name. Naoto dreams of seeing her again and tries to find her. Finally, after 11 years, he locates her, but she is a totally different person now. Naoto becomes obsessed with her. Naoto sneaks into her house and stays under her bed.
Toka returns to the island she grew up to attend her mother's second memorial service. She finds out that her father Seiji is wearing her mother's clothes. As if that doesn't come as enough of a shock, Seiji even tells Toka that he is getting married again to a man named Kazuo. The film explores the particular incident and the life of the island people with a humorous touch.
Miki, Yuto, Hiroko, Naoki and Kota have been friends since they were little. They all graduated from high school. They have dreams about their future as well as anxiety. Miki's father goes missing with her college admission fee. Yuto has discord with his father who runs an auto repair shop. Yuto happens to get involved in a crime. Hiroko wants to marry her boyfriend, but she also distrusts him. Naoki and Kota have their own worries. These five friends think about themselves for the first time.
Story continues with the students' own conflicts, Koro Sensei’s identity and the fate of the world. The time limit for assassination is approaching.
A mysterious creature destroys 70% of the moon. The creature then warns that if he is not destroyed by March of next year, Earth will be next. The creature also demands that he becomes the homeroom teacher for 3rd grade E class at Kunugigaoka Junior High School. The government is powerless to say no. The creature then becomes the homeroom teacher of 3rd grade E class which consists of failed students including Nagisa Shiota. The creature is called Teacher Koro. Meanwhile, the government requests that the students try to kill Teacher Koro even though he possesses super powers. The government offers a 10 billion yen reward for whomever successfully kills him. The students are confused by the situation, but decide to kill Teacher Koro. When their class begins with Teacher Koro, the students finds themselves having a good time with their new teacher.
A man named Saeki who frequents the cinema and meets a beautiful college student known only as the midnight companion. When everybody had left the cinema, the two would stay behind but this suddenly stopped when the midnight companion disappeared. Three years later, he has returned but a darkness inhabits him. Their love is rekindled but…