My Brother's a Basketball Prodigy, But I Became a Sword Master?!

Five-year-old Kurozawa Tōsetsu just wanted a normal life after being adopted by the prestigious Akashi family. But when a mysterious fox spirit crashes into his world demanding he become a Saniwa—a master of legendary sword spirits—everything spirals into beautiful chaos. Now ancient warriors call him "Master" and weep at his feet, his genius older brother shoots lightning from his eyes on the basketball court, and his tennis-playing friends summon dinosaurs mid-match. Welcome to a world where sports anime meets supernatural mayhem, and being the "normal" sibling is the real fantasy.