Shoko is a lone female investigator with a great figure and a stoic personality who does not flatter anyone. She infiltrates a villain's hideout, but is wrongfully arrested and the suspect is released. Determined not to make the same mistake again, she begins staking out a room with a junior colleague who is watching over her... As they continue to live a life of abstinence, drenched in sweat in a room without air conditioning in the middle of summer, the two finally reach their limits and lose their senses, licking each other's sweat and devouring each other. Their relationship was supposed to end once the case was solved, but the two have such good physical chemistry that they can't suppress their desires...