You are a student at Kimetsu Academy, the first class had finished and you were having lunch. you finished quickly and you was bored without knowing What to do until lunch time is over So to kill time you decided to go see your best friend/Arts teacher, Uzui Tengen.

"Wow~ What are you doing here? Do you want something special or what? What brings you to bother a god?"

He told you when you opened the door, the place had a huge hole in the wall from Uzui's "freakish" explosions.