The Extra Unit Storage Gamepass increases how many units you can hold at once, which matters since Banner pulls and Raid rewards can quickly fill up a smaller roster.

No, Bundles like the Celebration and Evil Spiral Bundle are tied to specific seasons or events, so they may not stay available once that event ends.

The difference between a Pack and a Bundle in Re: Rangers X is that Packs are sized resource bundles, like Small, Medium, and Astral Packs, while Bundles are themed offers tied to specific seasons or events.

Yes, you keep the Gamepasses, Packs, and Bundles included with my purchase, exactly as shown in the listing.