Ihoujin, Dungeon ni Kuguru.

Souya, in need of money, agrees to a dangerous job that involves traveling to a fantasy world with a team to climb a dungeon tower and claim its treasures. A mishap during the transfer leaves him stranded alone. To survive, he gathers a group of adventurers, including exiled elven sisters and a deity of deception who prefers lounging as a cat. Together, they face threats from both corrupt outsiders and deadly creatures inside the tower. Whether they can overcome these challenges remains uncertain.