After graduating from university, Sena Kasumi works as a teacher at a junior high school in Setagaya Ward. The teaching profession is far busier than she imagined, leaving little time or opportunity for socializing. With each passing day, her stress steadily builds up. As a young woman, her sexual desires naturally grow stronger. She moved to Tokyo for her studies, living on student loans, but her teacher's salary alone isn't enough to repay the debt. To make ends meet, she began working part-time at girls' bars and hostess clubs. One day, she stumbled upon a sugar dating request through social media. Out of curiosity, she agreed to meet the man. He turned out to be a seasoned older guy who invited her back to his place, then slowly and thoroughly indulged every inch of her pent-up body…