Lumi-chan, an office lady from Tochigi Prefecture currently on a business trip to the Kansai region, is known for her enthusiastic and energetic personality. While on the job, she suddenly expresses a desire to take a shower and quickly strips down. Her blowjob skills are on par with a professional, so impressive that they even distract the male actor from his work. Captivated by her charm, intense feelings quickly well up.