What is the Misc slot in my X save's Other tab?

[logic8]

Sorry if this isn't the right forum, or if this is answered somewhere already, pretty vague search terms bring up unrelated results 

This is on my X game save. I only see the misc slot on X, not my Moon or other game's saves.

This Squirtle has me perplexed 

[Guest]

My guess is that it's likely this: https://bulbapedia.bulbagarden.net/wiki/Anistar_City#Old_man.27s_house

[logic8]

That was it exactly, thank you.

But now I'm sad omg