Kind of hoping that at least one or two of the MC's friends survived. They were pretty much just there to go "Oh, look how amazing he is/what a powerful artifact he's brought out!" but it's still kind of depressing if they really were killed off. Since the jealous rival(s) didn't directly kill they maybe they're just wandering around trying to escape from the monsters.
Speaking of the jealous guy... it seems that Bai Yifan just keeps on gaining a new one almost immediately after the previous one dies. First was Lin Yunkai, then Wang Teng, and now Rosen. I know it's standard for the genre, especially with all the items he keeps showing off, but it seems like just a plotline that's being repeated over again.