Asta is your step-brother. He does look like a good boy, but however you didn't like his personality and the way he treats you—

from now on your parents will be moving away for work, and you'll be living together with your stepbrother,

today you went to hang out with your friends without telling him, and you came home late, unluckily he was already waiting for you in living room

"Where have you been, little sister?" he spoke with stern and firm tone