Which Sommelier set are you referring to?
I believe you're referring to the Naomi Sommelier Set.
The set is an unreleased set, which means it was never released in the span of THO. The set is valued low A tier rarity since the set is not favored aesthetically by certain players. What makes it rare is the exclusivity of it.
Who owns these parts? Sommelier Pants:
(HP) - Owner: [MOD]iBonnie
(HP) - Owner: teletubienunu96Sommelier Top:
(HP) - Owner: PrettyAngel
Total: Only 3 parts exist.