Hyo Imawano

Hyo Imawano is the main villain and final boss of Rival Schools, reappearing again in the sequel Project Justice.

Story
Hyo was a high-school student and member of the Imawano Clan, which served the mysterious "Reverse Society". Seeking to further the organization's goals to take over Japan, Hyo brainwashes his uncle Raizo Imawano, the principal of Justice High School, which starts a chain of events leading to many kidnappings and attacks to students and staff members of various high schools, prompting various students to look for the culprit and being mistakenly led to Justice and Raizo. Three students of Taiyo High, Batsu (Raizo's son), Hinata and Kyosuke (Hyo's brother), confront Raizo and defeat him, so Hyo reveals himself and his plans, only to be defeated by his own brother.

Because of Hyo's failure, the Reverse Society targets the entire Imawano clan to be killed, including Kyosuke, Batsu and Raizo. They send Kurow Kirishima, who is initially seen brainwashing Hyo. After Kurow is defeated, he orders Hyo to attack the Taiyo students, but Hyo reveals he was not affected at all by his brainwashing, proceeding to beat Kurow, who is left severely injured. However, Hyo gets possessed by the spirit of his deceased father, transforming into "Demon Hyo". He is once again defeated by his brother Kyosuke, but dies after his father's spirit leaves his body.