I discovered two things:
- I was wrong about advancing Sarah's story. It is possible to continue, although, like most things in this game, the continuation is hidden. saiful and others helped me, but I honestly do not remember what worked to trigger the continuation.
- It is possible to completely lock yourself out of the job with the Whites without completing all the events. To lock yourself out, play Twister one too many times. If you have sex with Mrs White, you are locked out until the next update. Instead, undo or load again, select chat, earn income, and try another day.
Yep, I will need to start from the beginning to complete the White's content, but I will wait until someone makes a full walkthrough.
On a side, yet related note, I develop tabletop RPG games, and I can tell you that this game's developer would not last in the industry. He/she/them are effectively creating a dungeon with only one escape door. The issue is the door is locked, hidden, and secret. If the players fail to discover the locked, hidden, secret, door, they are stuck forever in the dungeon. For gamers, that is an "I quit" scenario. Expecting players to endlessly try random things until the door opens is insanity.
I realize the developer is not a native English speaker, I believe Russian. I mention it because I sincerely, genuinely, hope someone can communicate with the dev in their native language and inform him/her/them of the faux pas of this game. Hopefully, these design errors are addressed, fixed, or changed. The story is interesting, the models are attractive, and I'd hate to see the existing work go to waste.