The manga's summary already confirms the endgame:
Gentle Pianist Wen Niannan x Heartless President Gu Yansheng
Yansheng is already in love with Niannan but doesn't realize it so he'll have character development eventually.
ugh really...aww man i hate gu (╬￣皿￣)凸
Yeah, no. I’m done reading this. After he’s been verbally, emotionally and physically abuse, he stayed? Nope. I’m selfing this before I get emotionally invested, than I already am. Not wasting my time.
YAY!!!I hate Yansheng but I ship them(⌒▽⌒)
who is niannan gonna be with in the end ? i hope blonde ヾ(❀╹◡╹)ﾉ~