Okay so before starting this, can someone tell me if this has a love triangle?
Not a love triangle but unrequited love. And other commenter said "rivalry", I wouldn't even say that. One girl sees herself as a rival to FL for ML's affections, but ML never took the rivalry seriously. It's just unrequited love, not a real rivalry.
His injury is a pretty major part of the plot. He got injured trying to save the life of the FL's dad. FL doesn't…
As far as I know, the actor was not actually injured, just acted injured to play this character because of the story. In the show, he quite often walks normally to avoid embarrassment, so it's not like he can't, but it's just not good for his leg.
Got second couple? If yes, who with who? Imma wait until ep 20 only I start watching
Unfortunately no. They hint at JYS and Mingyue becoming a couple but they don't. Also Oscar loves Chuchu but she doesn't feel the same way. At the end, both those pairs are still just friends.
As real couple: episode 17
They break up episode 28 and get back together episode 30.