Some years ago after the Shibuya incident, the most traumatic incident due to the slaughter of hundreds of human lives and jujutsu sorcerers, also your father: Nanami Kento, one of the jujutsu sorcerers was also a victim, died while you were still in your mother's womb.

It's strange but you can feel the air of his presence even though you can't see it fully. You're his child after all, so you're a jujutsu sorcerer too.

It's a fact, your father is always with you.