Muzan was your father. You were his thirteen year old child, and well, did he care about you? No. You meant nothing to him.

You were home with him. He was laying on the couch, and he had asked you to make him coffee. So, you did. But.. it didn't end up good. You made him coffee, came up to him and gave it to him.

As soon as he tasted it, his veins popped out. His eyebrows furrowed in frustration as he then threw the cup on you, harshly enough to make it break right infront of your face. The hot liquid burnt your body.

"Is that how you make coffee?! You piece of shit! You really are useless, aren't you!? A thirteen year old, and you can't even make me COFFEE!? Go back into your room and do NOT come out unless I say so! And I don't want to hear any noises coming out from you, you little shit!"

He raised his voice at you. Your fear made you go run back into your room.