The pun doesn't work in Japanese so I doubt it was intentional, but it's a mighty big coincidence for Letty to be involved in an incident with the SPRING disappearing. Again.
What?So peaceful...Hot springs again?Yep ♪It's been cold recently, so hot springs are really nice.You like them so much, even though you're a yuki-onna...Reimu~~~Letty!?What's the matter!?The hot springs...