Rio Mason Busujima

Rio Mason Busujima is a former naval officer and member of MAD TRIGGER CREW in Hypnosis Mic: Division Rap Battle. He provides military discipline and survival expertise to the Yokohama team.

Rio Mason Busujima's combat role and personal arc

He is stoic, literal-minded, and unexpectedly hospitable through his unusual field cooking. His defining skills include marksmanship, wilderness survival, physical combat, and forceful rap.

Rio Mason Busujima's defining relationships and loyalties

His central relationships involve Samatoki Aohitsugi and Jyuto Iruma, linking his personal conflicts to the larger division rivalry.