Mariko works part-time as a clerk. The unremarkable Mariko was ignored even by the young employees. At home, her husband showed no interest in her either. Her daily loneliness was filled by masturbation. Mariko had an unusually strong sex drive. One day, while out drinking with a junior colleague at an izakaya, Mariko heard a young man saying, 'If you give me 30,000 yen, I can fuck even a mature woman.' Despite being thought of as a suspicious old lady, she exchanged contact information. And so, they actually ended up meeting. She desperately suppressed her nervousness and excitement, gripping the tea-colored envelope containing 30,000 yen...
