beta
Byul is also on the blame here but Dojin is the biggest asshole in this. Dojin baby trap Heysun and choose to support the mother, he is wrong in both of the situations. Even to Byul is in the wrong for talking to the grandmother he doesn't know the full history behind his birth.
Unfortunately, I don't think we will escape the reconciliation route, the author probably with make the grandmother be forgiven, I hated it but Fargo already did it before.
About the kiss, it's not that deep guys, he is a teenager in panic trying to confort his crush