can someone spoil me on jaehyeon?

he's also kinda morally grey from what i've read so far, he doesn't defend kangjun or protect him publicly but is like a comforter for kangjun's miesery during the angst stage when he's all alone he would stay with kangjun only when they are alone together, reason is yohan got extremely jealous and could've hurted them both, kangjun also is aware that jaehyeon avoids him sometimes for good reasons ! he's not like 2nd ml tho, only one ml which is Yohan and beware there's gonna be many secnd hand embarrassment and dramas waiting ahead before the good parts