Jikook: The Prince and the Idol

A prince wants to be appreciated and loved for His talent not because of who he was born as. Since his brother is set to inherit the throne, he can basically do as he pleases and can have a boyfriend, since he doesn't have to produce an heir. He is accepted into Big Hit Entertainment and become a member of BTS. He falls for one of the members, confesses on their big night, but is rejected. He thinks this is the worse part of the night, but it isn't. He is forced to take his brother's place after a tragic accident.

Will he get to have a happily ever after or lived a sad reality?

This takes place in a similar universe as ours only a little skewed.