Journey Through the Ashen Night

Any Ensemble-Cast Tragedies, or Books with a Protagonist Who’s Someone’s White Moonlight?

I’m in a serious reading drought. Are there any ensemble stories where a group of exceptionally talented young prodigies meet, become friends, and face every challenge together, carving out a world of their own, only for one person to be left visiting all their friends’ graves in the end? Or books with a character like Xu Yue, the idealized “white moonlight” type?