This game has quite a bit of promise, but unfortunately dev either hates his own game or is just incompetent. I don't even mean subtle stuff like slow heroine corruption and gradual shift of her personality, which is staple of ntr game and should be highest priority in development but still seems somehow lacking. But some of the problems this game has are very hard to miss, bugs would be most obvious - you buy potion from the shop and it simply does nothing, running speed of hero randomly changes all the time, some of the scenes you saw previously randomly repeat (and I don't mean repeatable scenes, some unique scenes too, like mafia boss introduction), half of the scenes that are already implemented can't be reached in game. Also stat numbers in this game all feel wrong: e.g. you can spend 1000 gold and whole game to get +10 max hp when you have 1000 from the start, why would you ever want to do that? There are tons of different bugs and lack of polish that is immediately noticeable.
How can developer miss all of that? Did he even played his own game once? Also his baby rage because his game got stolen, srsly what did you expect? That is bound to happen at some point, deal with it. Not to mention that he's chinese himself and notion of intellectual property doesn't even exist in China, should have known better.