Hikaru's Half-Brother
Very little is publicly known about Hikaru's older half-brother from his father's side. The two grew up apart, and Hikaru harbors some prejudice toward him—a tension that colors their relationship.
Following the Onigashima family tradition, he attended Shishiku Academy, where he became something of a legend. He managed to take over the entire school in less than a month, cementing his reputation as a force to be reckoned with.
Content compiled by AnimeList.moe from publicly available sources.
