I've fixed about 20+ bugs so far and i'm not that good at renpy. I would get an error report then fix it. Reload and run. Play one route at a time starting with younger sister, then older sister, and finally the mom. After that, started on aunt content. That's how I would do dominant or love paths on either one.
Now, I am stuck at the love path with younger sis with not getting into the studio after getting the camera.
NO event with aunt at all.
NO event with cousin. (Didn't expect any)
Mom's story is stuck after job interview since I can't talk to the principal.
Older sister's gym path seems badly glitched at "end of content" with cod and returns to menu.
It seems the dominant path with younger sister has an "end of content" notice.
There's a reason I didn't update the OP while testing this. I feel we don't gain any new content, really. It's more of a slight redo especially with aunt's path but the aunt content seems cut. I'm struggling to think how the mom, older sis, and younger sis paths really show any progress? I honestly think this entire game has seriously regressed. Like it's gonna get another "remaster" and with less content.
PingPanda do yourself a favor and get some testers with a critical eye to guide you with this game. It would help you make a more positive impression. Just read the last few pages. It's bugs after bugs and bugfix after bugfix. Your renders are good, the story is interesting, but the execution is honestly where you need help.