Boushoku no Berserk

Fate Graphite lives in a society where magical abilities determine one's future. His ability, Gluttony, is considered a useless affliction that causes insatiable hunger, leading to his rejection by others. After killing a thief, he discovers that consuming a person's life allows him to absorb their magical skill, satisfying his hunger. The question remains whether he can master this violent power for a greater purpose.