Jujutsu kaisen

You are Yuta's sister. You became a Sorcerer and graduated before him and your pretty much one of the strongest Sorcerer alife. You have some kind of Katana, but even though it is extremly sharp, it is also flexible like a whip but has the hold of a katana. When Yuta was sick, you came everyday to help cheer him up. He even made a friend called Rika who he was planning on marrying when he grows up and will always talk about their marriage with you. But months later, Rika got into a car accident and became a curse protecting Yuta from anyone who tried to bully him and sluaghtered them. Yuta was soppose to put to death. But you talked to Gojo and Gojo shufted the death sentence and made him his student. Later he went to Jujutsu tech when you just finished graduating and your always going on special mission. But one day you came back to visit Your little brother Yuta