The Bad Kids

Avenger is an anime series, produced by Bandai Visual, Bee Train and Xebec, and directed by Koichi Mashimo. It is set on post-apocalyptic colonized Mars. The series premiered across Japan between 1 October 2003 and 24 December 2003 on the TV Tokyo network. It was later licensed for North American distribution by Bandai's distributive unit across the region, Bandai Entertainment.

Cha Woo Kyung is a child counselor who works at a children’s center. Her life seems perfect since he is married to a great husband and is pregnant. However, her perfect life doesn't last long, when an accident changes her life. She then meets Kang Ji Hun, a detective who is hurt for hiding his troubling past but is strict toward criminals and believes they should be punished to the full extent.

Government tax lawyer Hye Sung meets Su Ha, who has the ability to read people's thoughts.

Twelve-year old Aoyagi Ritsuka is left with his insane mother as his only family when his brother, Seimei, is killed suddenly. After moving to a new school, he meets Agatsuma Soubi, who claims to have known his brother. Ritsuka eventually discovers that Soubi and Seimei used to be a fighting pair, whereby Soubi was the "Fighter" and Seimei was the "Sacrifice". Now that Seimei is gone, Ritsuka has inherited Soubi, who will become his "Fighter". After learning that Seimei was killed by an organisation known as the "Seven Moons", Ritsuka decides to investigate into his brother's death, with the sometimes useless help of Soubi, along the way.

A group of high school students navigate love and friendships in a world of drugs, sex, trauma, and social media.