Set in Hakone Onsen, Maki Tsubaki, a new SOD female employee in her first year in the production department, sneaks into the men's bath for a popular project! She takes on the missions of "getting a male customer to lick off the water Shizuku from her whole body" and "getting a male customer to wash her whole body there." When she enters the men's bath wearing a nude blouse, her huge breasts become visible through her underwear! She gets fucked while four dicks rub against her busty, whipped body!