I found myself addicted to this show and I try so hard to comprehend why.
I think I got it.
The story line is CLEAR and so easy to follow because of a GREAT script and the great chemistry of ALL FOUR MAIN CHARACTERS WITH EACH OTHER. Bail Lu and Shane Xiao were magnificent in Legends, and I think they NAILED their friendship on screen. I wonder why people never mention such chemistry. Luo Yunxi surprised me immensely with his acting. I had NO IDEA he was so capable and MULTIFACETED.
The story is original, fresh, with an undertone of real life rather than shakespearean tragedy.
Critics might point little details out, like an overall sense of anti-homosexuality, but I think is the price to pay to come out with such gems.
The real value of this show : US AUDIENCES CAN RELATE TO IT.