When I woke up I was in a room that I didn't recognize. This is the eventful life of a dungeon master! But contrary to expectations, it's an unexpectedly laid-back (?) tale of a man walking the life of a dungeon master.

On a first sight, Yuri is a quiet, cute girl. Today is the day of her execution. Why? That's because she's a serial killer. While being tortured to death, she is suddenly summoned to another world. What happens when someone like this is transferred to a