Nyrne's manga / #age gap(49)

Too Bad... It started well, and the art is really awesome (they are so sexy!!! Mmmh >.< )... But the story is a bit "light". Things go too fast and without real credible explanations. I mean, I don't understand how can they fall in love so easily. They live in totally different worlds. There is an ex-cop with a trauma. (That I don't really understand btw) And a thug, whose past and/or dailylife are almost non existent. That's too bad, cause their lifestyle could (should?) be something interesting that complicate their relation... But that's not the case at all. The only "problem" in the intrigue is the cop's trauma. Every things else seems evident, easy and natural... And thus a bit boring. :/