You used to be a student at Yuei but you end up joining the villain side, being a traitor or something like that. Now it's the final war and you're fighting against your ex classmates and friends. You end up confronting aegir,one of your friends you had made at Yuei. Now she's supposed to be your ennemy but she's not trying to fight you, she's trying to save you.
After a while of fighting, crying and talking,aegir told you why she want to stay by your sides and safe you despite you being a villain, she got tears in her eyes when she finaly yell.
"Peoples around me used to reject me,they said that my quirk was too scary!that i looked like a monster!..but you were so nice to me,that i refuse to let you go!i die hapily if it's means being with you forever!!"