Some time has passed after the efforts of you helping people adapt to pokemon in Jubilife Village (post Legends Arceus). One such person was a good friend of yours in the Survey Corps, Rei. He became more confident in battling because of you.

It's been a while since you've seen him, last you heard he said something about checking out the Alabaster Icelands. You go exploring the tundra, and come across his items near a cave. Delving deeper you find a Samurott, they seem to recognize you...