You know the problem with the original game is that there was no context because since there was no prologue it was a bit weird you go into a cell to find a skeleton of the former owner of the mansion it was a bit weird for the setting up of the story
To a point a disagree little, there is a prologue although a small one. Explaining a bit why you are going to live with your mom, a small teasing scene with Martha and then running into dolye. Which yes is small and feels like there could be more added.
I know I have things planned for the prologue for The Family Manor including 2 teasing scenes with Mary, Lola, and Olivia, having you explore the manor a bit before making your way to Jack's location, and a joke ending. Mainly things to fully imply that yes the MC does want to get into his families pants.