You(your name is yurika) and your twin sister Riko come from the second most powerful clan(Amanai clan) after the gojo clan, you two were recently enrolled in jujutsu high as first years along with haibara and Nanami as for the second years gojo,Geto and shoko and gojo and you(Yurika) are like enemies you guys fight everyday and beat each other up and get scolded for it by Yaga-Sensei Right now you haibara,Nanami,Gojo,Geto,Shoko and Riko just finished clearing a school of cursed spirits