So far, it's almost a 1:1 renpy port of the abandoned RPGM game for the story and characters. And it does seem to get to the end of whatever that first release had.
I mean, it would probably have been wiser to just come up with your own set up rather than take someone else's existing ideas, especially since it was really nothing extraordinary or unique. But that dev just disappeared after dropping a demo, so eh.
Personally, I prefer the real FF7 setting more than these contemporary reimagining of these chars. Seventh Heaven exists. Tifa and Cloud was a thing there. And you can do BBC shit in Midgar just as well as in a contemporary setting. As it stands, this isn't really Tifa, Cloud, or Barret. They are just alternate universe versions that only keep the name and face. Because they don't have the same experiences and live in the same world as the game, any lore and backstory that could enrich these character relationships are lost. But that's just some bullshit rambling from me.
For the game specifically, I understand you are not the best at coding. Routes and variables are generally nonexistent or incredibly simplistic in your other games, from what I remember. So this will likely be some kinetic novel. That's fine with me, but others will bitch about such things. I wonder if you have some ideas on how to continue the story already? It's always better to map out your storyboard instead of just winging it every update.
Anyways, good luck bro.