In general - I am enjoying this VN but I see some major holes in it.
Some things that are lacking and seem obvious as adds:
* Why have an exercise statistic from the start of the game - and then give the MC no way to improve?
He is regularly derided by Eric as someone who is out of shape and being told that he will be sent away to a military camp to fix this, but we are given no choice to do anything to improve exercise, not even to buy a couple of 10 pound barbells or an exercise book.
* Why have the MC be smart enough to help Lisa with her homework and still have no way to get his GED (high school equivalent diploma)?
Again - Eric derides him as an underachiever who never graduated high school and then we have no way to improve an education statistic.
The classes on communication, massage, and learning the web book all could count towards improving an education statistic but there is no skill to develop - no way to get his GED or to start taking classes for college credit.
The MC starts out as a Beta but we are not given the tools to turn him into anything but a sneak who cannot defend himself against the criticisms of Eric - our persuasion skill means nothing to the Mom in terms of avoiding forced NTR pathing (Lisa sex-ed with Eric on the war path). The MC - someone with at least some basic tech knowledge, is not even bothering to record the 'private' Eric conversations where Eric threatens him, giving him proof about Eric's intent that the MC can play for Alice, Lisa and perhaps Kira (since Ann would never believe him given Eric's control over her) to try to warn them about Eric and gain allies in the house.
So far - we have a partial blackmail path - but no guarantee that we will be able to stop the NTR before it takes over one or both sisters (the Mom is already under Eric's spell and it seems like he may take Kira as well).
For me, it is wait for 2-3 more updates and see what has changed/improved, then decide if this is a VN I want to not only play but support via Patreon. It was worth a few hours of time to try it out but not more than that for rev 0.6.5. For those of you who feel differently and you really like the state of this VN, please consider supporting the creator via Patreon or his support platform of choice.