Shindou Yuuma woke up in a cave with status panel.
The concept of game-like system clicks with him, but he got no memories of his life.
And for his job... [Irregular] it says. What does that mean?
While regaining his memories by leveling up, her survives and explores the cave to search a way to return home.

But the situation turns more dire than he expected, when he faces a threat that froze him in fear...

A giant gray wolf mauling other monsters.