There's bunch of stuff that Park Chanyeol never really fond of and Kris Wu (his very best friend since they were in the womb) would always notice every single one of it well, maybe not quite all of it. 

He's been the cupid for everyone while his own love story is remained to be a secret.

Kris is a Workholic and Henry is his assistant. Chanyeol is drunk and Amber is worried. and it all happen at Friday Night, when finally Chanyeol speaks up about all his feelings that he's been kept to himself.