Reviewing the v0.1, 2/5 but only because it's early and can be completely reworked, render quality is decent. There is no content really, it's a very short demo.
Story: The story is all over the place and doesn't really make any sense, it's full of lazy and illogical reasoning to have the characters be naked. For example, the MC and his [childhood friend I guess in a week] apparently aren't supposed to masturbate (why?), but everyone is wearing barely any clothes. Would it not be easier to have everyone wear hoodies if celibacy is so important (for some reason?). There is barely any story to be read and all of it is illogical, 1/5
Models: Female models have gone overboard, I like fit girls but these just look roided up monsters, wouldn't be surprised if they started to grow a beard. The MC on the other hand seems really weak, the average gymgoer would wipe the floor with him, he has less muscle in his arms and shoulders than the female models and is shorter than the older female model. Why would he be going to a bodybuilding competition, especially if musclemonsters are preferred there, considering that the older female model won 5 times. The faces of the 2 younger models look very young, they still have the childhood "roundness" to them, which doesn't look like it belongs to the very lean bodies. The models don't look bad if you like girls with muscles, but they don't look good either and don't fit the story, 2/5
Incest will probably be gone soon considering that the dev wants to use patreon, but just shows his inexperience by doing an incest game in patreon in the first place. With the storytelling that I've seen so far, I don't expect much else than the most generic landlord/tenant stuff with story that doesn't make sense without i-patch. Hopefully the dev can take criticism from the forum to learn and grow with their game