Koki Horikoshi

A mysterious creature destroys part of the moon and then warns that, if it is not destroyed before March of the following year, Earth will be next. It also demands to become the homeroom teacher of Class E, a third-year class at Kunugigaoka High School.

Seiji Hasumi is a popular English teacher in a private high school. He is also a violent and sociopathic killer who concocts an extreme plan to deal with the rise of bullying and bad behavior among the student body.

Takeshi Hongo is a promising young man with a passion for motorcycle racing. However, his dreams are suddenly ruined when he gets kidnapped by Shocker, the evil secret organization planning to dominate the world. After being remodeled into a cyborg, Takeshi escapes and swears to protect the world from the inhuman monsters.