I don't think I've seen anything like that, coral in the item shop would catch attention easily.... But I'll double-check from now on until you get some, Shirahoshi.

[He has many questions, curious about the bubbly coral and all, but... He won't ask them, at least not right away when she's asking for help.]

Don't worry, though, what you're asking for is definitively no trouble for anyone.

[If they claim it is they are just jerks.]