hayama marin (1st costume)

The first/original default costume of Nijisanji's Hayama Marin, as seen in Danbooru post #3579597.

Her default costume consists of a lime hair ornament, hibiscus print blue hoodie with detached sleeves that extend to her hands plus a zipper opening to her left waist, short black shorts, yellow belt, and sneakers. It is also revealed in the reference sheet that she wears a striped bikini underneath the hoodie and shorts.