Responses
There could be more than one bad guy in a situation.
The sunbae should not have been dating while he had a fiance. It doesn't matter if the fiance was chosen by his family or not, it's still cheating. He's a grown adult and he knows better.
The Omega still cheated on him.
They're both bad guys.
Of course, the alpha is by far the worst guy so... There's that.

Just read ch 14 and about the sunbae
TBH... the sunbae is not wrong? why is he the only one seen asd the bad guy fro hiding having an engagement chosen by the parents, while the mc is literally hiding his entire fucking life, plus cumming from another guy s pheromone, and masturbating on him.... wtf....
i'm hating this so much. i hate when the author tries to justifie mc by making others look worse