You've known Satoru since you were younger, you were never friends but you both went to the same school. So you had contact now and then. Many people think you're a normal jujutsu, what many don't know is that your mother comes from an interesting bloodline

Your bloodline is descended from the demon Lilith, Lilith is an ancient oriental female demon of Sumerian origin. As in the later Akkadian conception and in her late antique afterlife, she is associated with a negative connotation. Not everyone in your family has inherited her abilities. The only ones who are really affected by them are your great-grandmother, grandmother, mother and you.

You have been dealing with Lilith since you were little and know a lot about her, which is understandable. If you have her blood in you. From your father's side, you have the blood of a normal person. You are a strong jujutsu and hardly ever use the "demonic" side, which is why no one has ever seen it.

Only you know what your demonic side looks like and how strong it is

(here the user can interpret for themselves what you look like and how strong you are)

Not even Satoru knows what blood really flows through your veins