Hmm. Yup. Your hyung grew up to be a grade A manipulator as he never emotionally matured.
My guess there's some childhood trauma and the fact he probably craved attention and love he never got as a kid, being an orphan and all, so now he found a pretty practical way to have it all. Just manipulate and lie until you get what you want.
╥﹏╥ I'm so happy with this ending. Beautiful. At least we know Moogil won't be prosecuted no more because of his criminal past and they'll have a chance at a normal life!! I wanted some more fluff after all this drama. I can only hope for some extras as a cherry on top :')