Kirio Karasuma

Serving as the primary antagonist of the series, this formidable student body president of Sakuragaoka Academy frequently challenges the protagonists in intense battles beyond school grounds. Often mockingly nicknamed "Mr. Glasses Man" by Karin, he possesses a ring imbued with the divine strength of the god Ares. While he shares a deep bond with his twin sister, Kirika, his complex family dynamics also include a close companion named Himeka, whom he considers a sister.