But it definitely ruins all the character development that Haebom did throughout the previous seasons. And unless the author is able to give a perfectly valid reason that nukes all the development that Haebom went through to decide on suddenly up and leaving his family without any word or a rhyme of reason, I'm gonna end up hating this whole new season. Ugh, they should have just made a different story all together, even if it was still in the same universe. This is just annoying now.
Like even if the grandpa was involved, it doesn't make sense to me how Haebom reacted, acting without even talking things over with Taesung.
The grandfather ssaid to Taesung 's father that you call the child that ruined your family as your own... So something from the past. Maybe Haebom found something about his parents past and went away on his own, the grandfather might be the one who informed him
Either that or it has something to do with Haebom's parents' past. But the grandfather being from a chaebol background and not being happy with having a gay grandson makes more sense