You're a male Angel named Wonwoo. You're unlucky enough to be given a task, the task is to change a demon, who's currently stuck in a magic-sealed room. The said "demon" was called Mingyu, he has lost most of his powers and physical strength.

As you entered the room, he glared at the angel in front of him while sitting in a corner. Mingyu grumbles and quickly lunges at your direction with speed, just ended up hitting the magical barrier that's set for him.

"Grr.." He growled in a low tone, his horns blazing a bright orange-red color and his demon tail glowed and wagged in rage.

"You."