“Rein. You’re fired.”

Rein is a beast tamer who aims to defeat the demon king along with the hero.
But one day, he was called useless by his friends and was banished from the hero’s party.

Rein who decided to live freely as an adventurer, encountered Kanade, a girl who was attacked by a demon beast when he was taking his exam.。

It turns out, Kanade is a girl from one of the strongest tribes that hold abnormal power, the cat tribe!
Kanade who was drawn by Rein’s talents and kindness told this to Rein.

“Would you like to try and control me?”

Rein made a contract with the strongest cat-eared girl and starts his new life as a beginner adventurer.
But, the hero’s party who banished Rein, and another strongest tribe noticed his power…