Ok, honestly, I hate the ML, his only 'positive qualities' are his father's money and his good looks. The rest of his person is just plain trash. You can find eight years old kids who are maturer than the ML whenever you want. As for the FL, in my opinion, she is that kind of character who don't make the story, but let the story make her; she is just too passive.
Now, why five stars!? Because, in spite of everything, you somehow get really hooked up by the drama and the smooth writing. To LNs, the main objective is to entertain, and this novel is just too good at it.