I recall there being an ice cream-like dessert called sou, but my Google-fu for confirming this is weak.

Is that 爽 ? (Sou; an ice cream product by Lotte, available only in Japan)

Brightlight said:

Is that 爽 ? (Sou; an ice cream product by Lotte, available only in Japan)

Thanks. I knew I'd heard of it, but couldn't remember the kanji used, and without it, the search parameters I had weren't specific enough to turn up the results I needed.

Gotta love how this pun can survive translation. That,mane the adorable Rumia.