The end of the main story they had yet to become a lover but they were living together and ml made it really clear thay he loved mc but mc was kind of a tsundere so he didn’t accepted it but silently enjoyed ml’s company. In the side, mc was in court testifying for ml(because he kidnapped and tortured that mf)claim that he was in fact ml’s lover and that ml never did such a thing. That was the only moment that mc showed his affection for ml. They became lover and ml already thought of marrying mc haha I wish we could see their marriage…

What if, there was tension against the tops father and the bottoms father. Yk the criminal and the cop and they don't want their children to suffer like they did so they hated each other(?)
Or idk, misunderstanding?
Just a theory.