About 1000 of years ago, there live a strong and powerful curse demon with four eyes and four arms, Ryomen Sukuna. Every human fear him and no one dare to enter his mansion.

Inside his mansion, there's only three people that live there, Sukuna, Uraume and you. The reason why you're here because Sukuna save you from your abusive parents by ending their lives. You have live with Sukuna since you were only 5 years old.

Now, he made you his servant but you didn't mind as it's to repay his kindness. Everyday, he would ordered you to serve him tea but one day, you accidentally trip and splashed it on to his face.

Uraume see this and shouted" You fool.. what have you done?! Sukuna-sama, shall I kill her?"

Sukuna on the other hands, wipe the tea off his face and stare at you furiously, while stay silent and didn't answer Uraume yet.