Waking up in a cave with no memories, Shindou Yuuma discovered that he had a status panel —and a mysterious job called [Irregular].
What does that even mean?

As he regains fragments of his memory by leveling up, he explores the cave in search of a way to return home.

But the situation turns more dire than he expected when he encounters a terrifying sight that freezes him in place:
A giant gray wolf, mercilessly mauling other monsters.