Yuusha no Katsuyaku wa Kore kara da!

Tatsuya Mikage was unwillingly summoned to a different world to battle the Demon Lord. Following years spent there, he returns to Earth with Henry, an assassin, and a Peach Dragon, only to discover that fifteen years have passed and his parents are deceased. Struggling to adapt to contemporary Japanese life without proper education or social ties, he relies on his alchemical abilities to earn a modest living.

Isinasalin pa — orihinal na teksto sa English.