Well done. Once again the banter between Lea and Isa is pure gold. They are hilarious. And again, their personalities fit really well... especially Isa. It was also really nice to see some character development from the other Radiant Garden members (Even, Ienzo, Aeleus, and Dilan) and Ansem the Wise who are all in character.
It only makes sense that Roxas would be furious with Ansem the Wise after everything he did as DiZ. So, that was handled really well.
Also, Xion spending some time with Isa was also really good to see. It showed off Isa's inner compassion. I'm sure Xion needed that time with him more than Roxas seeing how Saix was rather cruel to her.
One other thing I would add. I must admit that going with Roxas' and Xion's relationship as siblings is something I haven't seen from other fanfiction. It makes sense considering that they both came from Sora. So, you could consider them as siblings if you really wanted to, but on the flip side, you could also have their relationship as a young couple since Xion is made up from Sora's memories of Kairi who is considered by the fans as his crush. You can make an argument for both cases.

Please follow this up! I'm super excited! :D

i love how realistic this fic is. the gang go through real life problems like birth certificates and they also still have grudges against those that had hurt them(like diz and riku) even if they are now technically all on the same side now.

OMG i love how roxas doesnt care at all that aeleus had hit him XD it shows that he's not a whiny weak person and he's not one to get so sensitive over small things that he knew benefited him in the long run. . roxas is mature.

I gotta say, I hope you do a full story of the Sea Salt Family living in Twilight Town. Even if it's just a slice of life/high school story kind of deal. I would be okay with that. Xion and Roxas being siblings (that just seems to be how you are writing them) and going to school with Hayner, Pence, and Olette and Lea and Isa being the "parents."

i hope you continue this series of storys i love reading about this group settling in to a "normal" life

Roxas and Venus conversation. Along with terra and aqua. These one shot are interesting.

You should do a story about dilan traveling to the beast castle and apologize to them?