Yuna, a new office lady, is going on a business trip alone with her boss, but she ends up sharing a room with him. He suggests they drink until the morning, but Yuna, who is weak with alcohol, is defeated. When she wakes up, her boss, who has changed like a male gorilla, is doing Yuna a favor. The boss continues to do it in the shower after sex, and plays with Yuna's body after the bath, but suddenly, he runs out of juices and tries to sleep without penetration. After being fucked for four hours, Yuna's body starts to ache! "I want more of this dick" The roles are reversed! Yuna gets on top of him and fucks her exhausted boss until the morning.