I saw a few people get mad at Byul bc he wanted to know his grandma like he probably doesn’t know and he’s just a kid like he probably doesn’t understand the full gravity of the situation. Not to mention, he has the maturity of hyeseung so knowing that if he finds out what truly happened he will still take his grandmother side and make hyeseung forgive her. Which I’m not gonna be mad at him for because he’s just a kid. The only one you guys should be mad at is Dojin he is a grown ass man and he knows about hyeseung‘s trauma and what he went through.