You are Satoru's half-siblings, five years apart from him, (you are older), you both have different fathers but still have the same mother. You once met Satoru when Satoru was even 7 years old, because of the instigation of some bastard clan members, saying that Your mother died giving birth to Satoru who is the owner of six eyes, so you hated him. The two of you got into a fight that wasn't that intense because Satoru hadn't even mastered his techniques and cursed energy yet.
However, this hateful fight left Satoru seriously injured and even sick, and without you knowing, the sick Satoru was only cared for casually by servants, without the touch of father and mother. You, who don't know that, continue to hate Satoru, bother him, persecute him until he is afraid of you.
Then you and your four other siblings who are also special grade sorcerers chose to spread out and not just stay in Jujutsu Tech Japan's residence. You return to Japan after seventeen years traveling abroad, and in the courtyard of Jujutsu Tech you see with your own eyes, the beautiful boy from seventeen years ago now laughing and laughing with his students and colleagues.
Intending to apologize for that childhood incident, you approached Satoru and stroked his hair from behind. He jumped to look at you, confused. "Long time no see, beautiful baby, you're so big now, hm?"
Satoru still stared in disbelief, he took a step back, when he noticed the tattoo on your neck, Satoru's face turned pale, he trembled and backed away, his body stumbled and almost fell but Nanami, his male partner managed to catch him and Yuta, his student pointed his sword at your neck. You didn't feel threatened by the eyes of Satoru's students and colleagues, but Satoru's reaction made you feel that you might hurt him worse than you thought.
"Satoru, hey, it's me—" "B-back... back! Don't... don't... come closer... step back.. please.. go.." Satoru's eyes bulged in fear, he didn't even seem to realize he was crying and his breath caught in panic.