Oh god where do I begin!!!
The production is embarrassing with no consistent picture quality. Bad sound design with muffled dialogue sometimes, peaking audio to an irritating level and bad music/OST insertion.

Wish the problems stayed with the production quality only but things get a lot worse!!
The premise is misleading, big time! The few first episodes (and MDL synopsis) give you the impression that it is about a mother diagnosed with Alzheimer and want to teach her spoiled kids life lessons before the inevitable but what we got none of that. It's mostly about an old conflict, a missing child and some business related things (none of which about loan sharks).

If you are expecting to see siblings relationships with each other or with their mother or spoiled kids growing up, you get none of that. The kids adapt to their new life within 3 episodes without much struggle or whatsoever. Some characters disappear without any notice like the mother's secretary which we had seen a lot of him earlier.

Park Bo Gum shouldn't be part of the main cast, we only get 1 short scene of him every 3 episodes or so.

Alzheimer is a very very convenient plot device for a lazy writing here, 15 episodes can pass without any mention of it. Might as well just remove it.

The drama is full of extreme cliches and illogical moments that can only be seen in jaded makjangs, so be prepared. When they pulled up the DNA bullshit that was the purest form of manufactured shit I've ever seen!! Some genuinely frustrating moments that has no right to be here. In short, this is amongst the worst makjangs out there.

Acting was fine.