Whatever label they may mean, we forget that the stories here are fictional and little, if any, concern the real world.
I reiterate that tags (including the definition of MC) are useless, because, to have fun or appreciate a project, everyone can identify with any character (even secondary) according to their tendencies, for me, it all depends on the variety of characters (age, appearance, behavior, etc.), from the art (not necessarily super refined 3d) but, especially, from the story, from the animations (dynamics with variable and zoomable poses), from the times of updating with acceptable content and since it is an environment with prevalence to porn, the quality and definition of the genitalia especially in animations.
I seem to have mentioned the minimum wage, for the rest: gameplay, environment, costumes, expression of each single character and other aspects that I have not mentioned, it is obvious, that the moon cannot be expected, especially when the project is not developed as a competent team in all sectors and I don't know any here.
This dev, however and despite some shortcomings, has shown that it is not necessary to try who knows what (monsters, horror, detective, incest, science fiction or other difficult to manage) to get an enjoyable/pleasant porn game (up to now with good timing and content) for which the viewer will not be able to fall asleep or destroy the index finger on the mouse.