Blame Target (Chapter 1/2)

Felix and Han are playing ball inside the house and they break an expensive vase. Not wanting to get in trouble, they blame Jeongin and he ends up getting punished instead. Due to the distress, I.N ends up entering babyspace, without wanting to be close to Changbin, Lee Know and Chan. Will Han and Felix tell the truth? And how would Changbin, Lee Know, and Chan make it up to I.N? Would I.N accept their apology?