In Crows Zero II, a high school graduate named Genji Takiya seeks revenge on a rival gang called the Serizawa Army who caused his friend's death. Genji enrolls in a rival high school, Suzuran All-Boys School, to challenge Serizawa and his gang. With his determination and hand-to-hand combat skills, Genji battles against Serizawa's loyal followers in order to establish his dominance and bring justice to his friend's death.

After the death of his father, a high school student joins an all-boys school where he becomes entangled in a violent rivalry with a gang of juvenile delinquents. Seeking revenge for his father's death, he must navigate the dangerous world of gang conflicts and fight for his own survival.

Crows Zero is about a student who transfers to a high school notorious for its gangs. He becomes involved in a violent gang war and must prove himself to be the toughest fighter to gain respect.