夜更かしアルケミスト
A [[official alternate costume|skin]] for [[Reisalin Stout]], that was added as part of a [[sleepwear]] pack during the November 2022 collab between [[Atelier Ryza]] and [[Azur Lane]]. See post #5834914 for in game art.

It is comprised of a [[crop top]], [[frilled camisole]], [[frilled panties]], and [[hairband]].
reisalin stout (late night alchemist)