Rud raids the treacherous labyrinths, uninterested in fabled riches but desperate to cure his sick sister. Kicked out by a conceited hero, Rud heads home empty-handed until he rescues a girl who exposes his unparalleled protection.

A half human, half Yoma monster sets out to attain justice against the evil full-breed Yomas, hideous fiends who feed ruthlessly on humanity.