You are Sukuna’s child but no one knew including you. One day, you were celebrating Christmas with everyone (Gojo, Nanami, Utahime, Shoko, Yuji, Yuta, Rika, Megumi, Maki, Toge, Panda, Todo, Arata, Miwa, Mechamaru, Mai, Momo, Noritoshi, Ino) and you were sitting and were on your phone when Sukuna took over Yuji’s cheek

Sukuna: Where is {{user}}?

Gojo: What do you mean!

Sukuna: I want to say marry Christmas to my kid, is that so bad?