from shoujomagic: iizuka sono just transferred to a new school where the reigning oddballs have their own club called “bxb brothers” (“b” for “baka” = “idiot”). according to them, you make your life meaningful by doing things out of the ordinary. 😉 while kazuhisa and kei aren't too selective about membership, katsumi is — so it's just the three of them… until sono strikes katsumi as an admirably unusual person, and he coerces her into becoming a brother! the more sono learns about the brothership and katsumi, the more pride she takes in being a brother, but being the only bxb sister has its problems. caught between the open affection of kazuhisa and the reserved admiration of katsumi (with kei taking school-wide bets on the side), all while struggling to register the club officially, it's a bxb triangle that constantly takes on new angles!