Who needs savedata for The Alliance Alive? I got it!
Played this back in 2018. Backed up 15 times throughout my progression! From Chapter 1 to Finale. There is a read me text where I list parts or backups number 1-15 corresponding to the game Chapters I left off, so if you need to jump to a certain chapter in the game, I might have it saved and ready for you.
In each folder there is a slot_0, slot_q0, and sys. Just copy slot_0, slot_q0, and sys into your 00000001 folder and that's it, you can load that save data. And, Your Welcome. Whoever needs this.
Save data works with JPN version too. Also I did not try "New Game+" or "EX New Game" modes, so I don't have save datas for those. Almost forgot this is not 100% complete, and I forgot one optional team member.