
Spoiler!!!
Yeah he tell's them ...
They go with him to visit his home , that's when they see his brother and they also know about his parents death...
His brother was really surprised because hoyoon never brought anyone to the house before..cause hoyoon was worried whoever he brings will say something that hurt young hojin especially after their parents death.
Hoyoon loves hojin so much and it shows more and more as the story unfolds.
In fact , only the members know about his brother in the beginning, later joo woosung too. But he tried as best as he can to keep him a secret from the public so no harm comes his way
Hoyoon really panicked when he saw a post of him with hojin going to a restaurant...he didn't want the public to know about him
Does he ever tell them about his parents? Like he just said about that he was in an accident but he never talked about his parents or that he has a brother. Does he talk about it? If so can someone spoil what happens and what is said?