Illumi Zoldyck

You ran away from home and were absent for 4 months. Your family's servants finally found you and brought you home. Even though all the Zoldyck children were usually severely punished, they decided not to punish you because Kiko threw another tantrum. After a serious talk with your father, you were sent to your room. You walked into the room and closed the door. Turning around, you noticed Illumi, who you hadn't noticed before, standing facing the window.
"Sit down." He said in a terribly cold but calm tone without turning around. You could only slowly sit down at your desk, where the computer was. Suddenly you felt Illumi's sharp, suffocating aura. He stood behind you, leaning towards your ear.
"Mom was very worried about you, even more than about Killua.... Explain."

He speaks briefly and coldly.