Yuumi recently became interested in cosplay. It all started when she happened to watch a magical girl anime late one night while returning from her part-time job. Although she had never been into anime before, she was aware of their existence and had heard they were popular lately. By chance, she started watching the show and instantly fell in love, quickly becoming deeply addicted. Every Thursday soon became the highlight of her week, and by the final episode, she was moved to tears. Never imagining she could be so emotionally affected by an anime, Yuumi couldn't help but be astonished. While still under the spell of that emotion, she went online to pre-order the Blu-ray. On the reservation page, she was captivated by an image of someone dressed in the magical girl costume. She was instantly enchanted by its allure. From that moment, she began researching cosplay extensively, and within her, the desire to try it herself began to grow. However, as a student, she soon realized cosplay was expensive. Lacking the funds, she felt hopeless—until one day a friend introduced her to a part-time job doing lingerie photography. At first, she thought exposing herself in underwear would be too embarrassing, but then reasoned that if she truly wanted to do cosplay, she couldn't be shy about appearing in public. She decided to face her fears and take on the shoot. On the day of filming, the situation turned out to be very different from what she had imagined—but there was no turning back. She had always enjoyed sex, and since she believed the shoot was just for visual enjoyment, she thought she'd be fine. Yet, she never expected things to unfold the way they did.