Fuguushoku [Kanteishi] ga Jitsu wa Saikyou Datta: Naraku de Kitaeta Saikyou no [Shingan] de Musou Suru

In a fantasy world where "jobs" are god-given from birth, heroes are born, not made... and Ein's job of "Appraiser" has put him about as far from the "hero" pedestal as possible. Used, abused, and eventually abandoned by his fellow adventurers, Ein decides it just isn't worth going on... Lucky for E....