Demon Slayer: Muzan, will you dance too?

"Counterattack System Loading"
Name: Uchiha Jujin
"Initial Reward: Three-Tomoe Sharingan"
Main Quest 1: Become the head of the Uchiha clan.
Reward: Eternal Kaleidoscope
Side Quest: Extract Chakra Once
Reward: Kaleidoscope
"First of all, my surname is not Uchiha."
Kiyokawa Izumi looked at the hideous demon before him and said expressionlessly, "This isn't the ninja world either."