Great story! I read chapters 2 and 3 :)
I like how you really use the beach as your setting. The worlds aren't set dressing in your story, they're part of it.
Where may we read chapter 1? The link doesn't seem to be working.
Edit: Oh, and if you are looking for more story recommendations to read, here are some of my current favorites
Sim 66 by Kellogg_J_Kellogg https://forums.thesims.com/en_US/discussion/978195/sim-66
Wyrd Girls by luciusstorm https://forums.thesims.com/en_US/discussion/1001312/wyrd-girls-a-sims-modern-fantasy-tale
I read Miller Legacy by HermioneSims too, which SnowBnuuy suggested already
The Incel Diaries by ghilie https://forums.thesims.com/en_US/discussion/1002615/the-incel-diaries-updated-8-22
Under the Tartosan Sun by DaniRose2143 https://forums.thesims.com/en_US/discussion/998934/under-the-tartosan-sun
SnowBnuuy didn't mention their own Divided :) I'm reading that one too! https://forums.thesims.com/en_US/discussion/1000590/divided-updated-19-08-22