Definitely seems like it was inspired by Spellbook or Lord of Imagination.
Probably love/lust vs NTR like those other 2 games. Very similar narrative also.
MC is a weakling kid at the start. You can make choices that pull him out of that beta zone and towards a love/lust kind of guy. Or you can just be a wimp and go towards the NTR route. It will take some time to get him to man up when dealing with others like bullies probably, but it will happen eventually.
As usual the anti NTR kids blow things out of proportion. Mom went on a date with the boss. She considers going on more dates, but you can talk her out of it. What a whore amirite?
Lilith is a demon succubus who feeds on cum. You didn't get cucked cus she went out to feed when you've exchanged like 2 sentences with her so far.