Synopsis: Alone in the shower booth! A passionate yuri encounter Reina is always being asked to play naughty games by her friend Himari. After swimming class, Reina gets turned on by Himari's appearance and this time proposes a game herself. It's a game where they make their nipples slippery with soap in an empty shower booth, and the first one to feel good loses. Himari lets out a moan at Reina's technique...