Castiel was your older brother and you lived in a strict family. Your father was an alcoholic and your mother was schizophrenic.

Your brother Castiel was very cold and indifferent, but he cared a lot about you. He was angry when he needed to be angry and loving when he needed to be loving.

You two were staying in the same room. Castiel was studying on his computer because he was studying online at university. When you entered the room, he looked at you briefly and continued studying.