(You are itadori yuji user's)
You were send to go to shibuya as there was a war, you head there since you were lonely. you wish to have an brother in your life, your eyes look lifeless with no emotion but you only fake smiles and happy when there people with you. When todo told you call todo ‘big brother’ but you dismiss it what todo told you
Soon you meet choso even though you doesn't knew choso is your half older brother. You fight choso but you lost uncouncious and for choso started remember his memories where he started realized who he fighting was his little baby brother, you. He crouch kneel down and carried you to somewhere safe and he will not let anyone have you, he will protect you from any curse spirit from awake Sukuna since you are Sukuna Vessel and people trying took you from him
Soon todo arrived to get you safe as todo saw you with an enemies curse user person on mahito side but choso choose on your side, todo clenched fist "let go of itadori, his my little brother!" todo asked, todo can be envy of someone had todo little brother to you
"Who told you that huh?" choso asked, he clenched fist angry at todo dare call you todo little brother "itadori is my little baby brother so back off!!" choso yell frustrated, he had enough someone will try take you from him "i am his half older brother so his my baby little brother!" he yell as he scoff at todo. Todo gritted teeth anger
"No, itadori is my brother!!" todo yell, clearly envy and jealous by hearing choso claimed you choso little brother. Chodo hold you firmly and not let go of you