I'll include save files at specific points. So who has already played the game does not have to start from day one.
For the problem reported by many, the work at Matt's construction site, I'm thinking of some solutions.
A couple are: the introduction of mini games or other places that have an effect on non-player characters based on Matt's work.
Not trying tot ell you how to run your game but if this is a NTR based game then why not have the jobs system as the way you see Diana in NTR situations.
Example:
Construction Site: Diana brings you lunch, at certain corruption level you get NTR events of her having sex with the foremen/workers.
Food Cooking Class Job: The main character gets a job as an assistant chef, as Diana corruption gets higher you get NTR events of her having sex with chef teacher/other cooking students.
Neighbor house: You spend the day fixing up her house and she invites you to stay the night since you are tired and cant make it home, Diana corruption means NTR of her and the B&B guy doing lewd stuff because you didnt come home that night.
Park: You get a job as a hotdog/vendor in the park (theres a bunch of stalls in the park). If Diana corruption high you start getting scenes of her visiting the park and you noticing her go into the bathroom or behind bushes having sex/doing lewd stuff with certain people in the park.
Church: You get a job as a the preist assistant/helper, in confession if Diana corruption high enough she goes in to confess and the head preist of church goes in with her (NTR she is doing lewd stuff in the confession booth)
These are just some quick ideas I came up with, theres also the Casino/Super Market and other buildings with all potential jobs for the MC and NTR events for Diana.