BxB Brothers

Following her transfer to a new school, Iizuka Sono encounters the "BxB Brothers," an exclusive club run by the campus eccentrics ("B" standing for "Baka," or "idiot"). Their philosophy is simple: a meaningful life is built on eccentric pursuits. While members Kazuhisa and Kei are easygoing about recruitment, Katsumi maintains strict standards, keeping the roster limited to just the three of them. That changes when Sono catches Katsumi’s attention with her striking eccentricity, prompting him to pressure her into joining the club. As Sono grows more familiar with the Brothership and Katsumi himself, she takes genuine pride in her new role, though serving as the sole BxB Sister brings its own set of challenges. Juggling Kazuhisa's open affection, Katsumi's quiet admiration, Kei's campus-wide betting pools, and the ongoing bureaucratic struggle to gain official club status, Sono finds herself caught in a multifaceted BxB triangle that constantly shifts in unexpected ways.