Tbh his reaction was valid but not his action cause why are you forcing him to come dinner with his own family when they see him nothing as a parasite. That is such a dick move. You can clearly see that yohan was uncomfortable just by the sight of his father and yet... I would be pissed too honestly.
Jun, atleast try to think first before doing something so stupid. I honestly felt so awkward just by reading this chapter.
SIDE NOTE: Yohan is pretty af