[Success! The guy seems unfamiliar, so Ferran will give him the benefit of a full explanation.]

Shaved ice. It's pretty self explanatory; they flavor it with fruit syrups, usually.

[Ferran is concerned about many things he shouldn't be, so Sephiroth isn't wrong; he seems a little pleased by the acceptance, despite the ominous vibes coming off the other man in spades...]

Strawberry and blueberry, for this one.