The premise of this manga is interesting, but I was very disappointed in the end. Every aspect of the manga was weak. It was all there, and it had such promise, but it all just crashed and burned after the first few chapters and never got better.
Story - 5/10 simply because the whole saving a mafia member thing and relocating to Hong Kong is interesting if not unique. However, after that, I got nothing from the plot except for an abusive, possessive male lead taking advantage of the weak female lead. Over and over again it happened, with no development in either of the main characters. There were a few plot twists along the way, but honestly they were predictable and uninteresting. Everything still revolved around the main pair and their dysfunctional relationship. The ending is a nice twist, but that's about all I can give it.
Art - 4/10, the way the people were drawn just felt off. Necks were too big and so they looked thuggish, the faces in profile views were oddly proportioned, and the girls have that awful Barbie look with Lolicon faces, tiny frames, but massive boobs. Most of the scenes lacked careful background and detail, though a few large spreads were drawn out nicely. The art did get better in later chapters, but still, it always felt off to me. Plenty of smut throughout, too.
Character - 3/10 Least favorite part of the whole manga. There was NO real emotion between the two leads, just an awful case of a brute getting away with being awful to the weak lead simply because he's hot. It's basically Stockholm Syndrome. The sideline characters are actually pretty interesting, with a cross-dresser and a conniving rich girl, but they get so little time compared to the prolific main pair that it barely matters.
I almost don't know why I put up with 50 chapters, except I will give it credit for being addicting. You want to know what happens next, even though you know it's not very good anyway.