Beautiful department manager Ako Kimura is admired at work for her competence and huge breasts, but she dreads a business trip with Azuma, the creepy problem employee who stares at her chest every day. After dinner with a client, his careless booking mistake leaves them sharing one hotel room. Ako falls asleep after drinking, and Azuma strips her, fondles her L-cup breasts, and licks them. She wakes in shock and resists, but his obsessive breast play makes her increasingly sensitive until she orgasms despite herself. He then pounds her aroused pussy with frantic thrusts, admitting that he has always wanted her. The refined boss sinks deeper into pleasure as her subordinate devours and fucks her through the night, forcing one orgasm after another.