The year is 2012. With the Gojo clan's complete control of the Jujustu world. The Zenin clan has gone to desperate measures. Inside the middle of a forest. Under hundreds of feet of dirt lies a dark and pitch-black cellar. 

The cellar is cold with a disturbing smell coming out of the cellar. The only air leading into the cellar is a gap under a stone door. The cellar is 50 feet wide and long. With 20 feet high ceilings.

But the most important thing inside the cellar is a young boy. The boy is ten years old. He has long dirty black hair. His physique is skinny, he's clearly unnourished. He has sunken-black eyes with a common Zenin facial structure.

His arms are bound to the gray stone wall behind him with long rustic metal chains. He's wearing dirty brownish rags. His pale body is covered in scars and bruises. In this world, he might be known as a child. But truthfully he's an adult from Earth.

He's been reincarnated after the poor child died at the age of six. He has little knowledge of this world. He only knows about cursed energy from a woman who comes into his cellar to train him...

The sounds of light footsteps enter my ears. I have been reincarnated into this boy's body for four years now. I don't know if this is a punishment from God, or if I am truly reincarnated. All I know is that the woman walking towards my cellar is the devil incarnated.

I watch as the stone door starts to slide screeching on the stone walls. The door opens as the silhouette of a woman standing in the doorway enters my vision. She has long black hair. Wearing a black kimono. She has black eyes. 

She says she's my sister. Which I can't say is true or not. I have never seen myself in a reflection before. All the knives I used were far too rusty to see myself in the reflection. 

She walks closer to me as the light from the open doorway pours into this pitch-black room illuminating the room entirely. She stands directly in front of me and glares down at me. She grins at me before talking. 

" Wakey wakey brat, I'm sure you're ready to stretch those scrawny limbs of yours. " 

She reaches into her kimono pulling out two keys. She squats down and starts to unlock the chains bounding my arms. I feel the chain around my right wrist click before it slides down my arm falling onto the ground, rattling. 

I look at my wrist and see bruises and cuts covering my wrist. I move my wrist in a circular motion as the woman unlocks the chain. I slowly stand up as I feel my sister's piercing gaze glaring at me. 

She tortures me inside this room. My pain sensors have become dull. I can barely feel pain. She did teach me about cursed energy a couple of weeks ago. Apparently, I have a plethora of it.

Yet my control of my cursed energy is lacking and I use my energy too wastefully. Which makes sense since I only just learned about this energy.

"It's about time you figured out your innate technique. When you figure out your technique you will be allowed to leave this cellar for a singular day. " 

She says to me. I nod my head at her until suddenly I feel an odd feeling inside my shoulder. I glance towards the feeling before seeing a knife deeply embedded in my shoulder. I quickly grab the knife and yank it out of my shoulder with a poker face. 

I stared at the bloody knife until I realized that the knife was clean. There's no rust and I could see my eyes reflecting off the blade. I glance back at my sister as I feel my warm blood leak down my body. 

" You won't get any food or water until you find your innate technique. " 

She says walking towards the door and taking a single step outside of the room before glancing back at me and talking. 

" Remember your only purpose in life is to kill Satoru Gojo "...