Synopsis: Obscene Pink XX

"How can it be so pink?" Eunha stumbled upon the sight of her younger brother's friend Woo-gyeom, whose crotch was emitting a clear, bright pink hue. Following that, Eunha instinctively couldn't take her eyes off the thing between Woo-gyeom's legs... "Are you good-for-nothing, noona?" Eunha was caught peeking at Woo-gyeom, and then he said, "You're the only one who's seen my body, right? Wouldn't it be fair if you showed me yours, too?" The situation took an unexpected turn...