That slave image you mentioned is very much intended.yeah, the prologue can definitely turn some people away. which there's a glitch before the ..... happens. the mothers image turns slave then back.
There's a guide / quest tracker in the game that's being replaced next update.
I'm not sure how far you've gotten in to the game but it's basically following the different paths of the characters.
Don't go after one character only, mix it up with meeting others and stuff. Because events will intertwine.
The game should be finished after day 55-60ish.
About the bugs, here's a list of what I have fixed so far for the next version(including some minor improvements):
• A cool event with Pamela and her restaurant wasn't in the journal, many people missed it. Fixed.
• When skipping the prologue, the day counter will work properly now.
• The glimpse of a ghost(Rose) when you the first enter the mansion lobby is no more.
• Changed the sequence of some earlier events to make more sense to the story.
• A hidden ending has been slightly edited so it doesn't contain a spoiler.
• There were two replay scenes that gave and error and are fixed now as well.
• Made a few choices a tad more clear.
• Beach girl Nani doesn't offer replayable naughty scenes anymore after buying a drink when you barely knew her.
These are all the bugs I'm aware of thanks to everyone here as of now.
Please let me know if there's something else wrong.