Well tried the demo and it was mostly average, the white hair needs more attention to feel better, in fact one of the reasons why white hair is unused is because it can feel very weird if you aren't attentive to the light, other colours such as green, pink or whatever won't be noticed as much.
About sex scenes they need more work too, especially on the genitals.
But if there is one point in which the game is plainly bad is in the writing, too direct and with idiotic choices with even worse dialog as a consequence, will just evaluate a few examples:
-First of all when we start the game we get two options to sell our stocks, both options seem like it was made by a little kid but I could deal with that, however if you choose to hold we get to the 5 years old writing, literally calling the player a moron, stupid and greedy. The game should just say something in the lines of "the tendency changed and you decided to sell fast, however you still got 5 million or so", it would at the very least maintain an average writing rather than try to insult the player.
-Then we get to the boss option, seriously he could have written many better options (like call your boss or directly celebrate, with some minor repercussions but giving a more normal reaction between pure euphoria and celebration compared to self-restraint and diligence), but no, the options are between telling a good boss to fuck herself cause you are rich or be a normal person.
-After that we get directly to investments option, not only it isn't the right moment to ask about it but it's so generic and lacking of information...
Sigh, stuff keeps being more senseless, forceful and stupid as the game advances, in fact I can forget about the goddess of love cause I could just take her as an average justification of the whole setting but why was it needed to rush stuff so much in the demo, by the end of it we have a prude girl accepting to share you with another girl and having lesbian sex, exactly why bother giving her that personality if you are just gonna jump from 0 to 100 in a second.
Overall the game if I don't consider the writing I would give it 2.5 stars, with the writing it gets to 1.5, a few ways to make it better:
-First of all play games with similar settings, one recommendation I give is to play Summertime saga to learn about how to present your game, not on the writing but on the icons, information, text and options. People spend a lot of time on that stuff and it will improve the player's feelings if it is well made.
-Related to models and sex they just need more work, but I'm no expert on this so can't truly say anything other than what feels weird, for now I would say the elements that need more work are white hair and the MC dick, both of them were really bad, the rest is okeish albeit could be improved.
-To the writer he should stop writing whatever appears on his head, understand the characters and be more gradual, currently it is such a big mess that I see no solution other than literally remaking the whole demo to make sense.