Former entertainer Koi takes on SOD's signature challenge: entering a men's bath wearing nothing but a towel. Visiting the men's side for the first time in her life, she turns bright red with embarrassment as her slender body attracts the attention of unsuspecting male guests. Their cocks quickly grow hard, but the earnest Koi bravely endures the humiliating situation and later admits that this kind of thrill can be fun once in a while.