I read a manhua a long time ago and I can't remember what it's called. It's about a boy with black and white hair and red-purple eyes (unsure of that though). He has a brother who almost dies and ends up in a coma. (I don't know the logical sequence of events, so I'm just writing things I remember.) He also participates in competitions/tournaments at night, secretly. He's learning something, it think it was something like inscriptions, and I /think/ he's tutuoring or getting tutored by a girl who might have red hair?? Sorry it's so vague, I just wrote everything I could remember