These are not my words but
There definitely a scene in a novel when Illay theatened Jae bcs he thinks Tae will always getting hurt if he's with Jae.
Some people say Jae will date the prince and its right, I might want to mention Tae doesnt like the prince(doesnt get said explicit in the novel but its by the way Tae reacts towards the prince) and the thought of them dating is making him depressed. And I will hate everyone who makes my boy sad.
**major spoiler**
The prince put Tae on terrorist list beside him being a victim (the prince kidnap him and Jae, Illay get angry, call the team and drop a bomb). Jae doesnt seems to care about that and works for him anyway.
I can’t stand the brother. After reading spoilers, I just don’t care anymore