Seo Yoon

Obtainable gacha character in the mobile game "Counter:Side"

Appearance
Although she doesn't wear any official swimwear, at least for her awakened form, she does have a two-piece gym uniform outfit.

•her two-piece gym uniform consists of a mostly black sports bra and buruma, with white horizontal lines on both sideways for her sports bra and buruma. There's also a blue waistband curvy horizontal line on her front chest of her sports bra.