Mao-chan, a high school girl attending Prefectural C High School. By chance, we gain the opportunity to secretly film her daily life from a neighboring house, leading to an obsessive habit of checking her panties every single day. Day one: pink, day two: blue, day three: white—each day captured in upskirt shots, documenting her underwear in detail. Gradually, the interior of her room is revealed: a clean, white-themed space exuding a fresh, delicate feminine charm that only deepens our fascination. New information surfaces—she has a boyfriend—and we begin to fully map out her return times and daily routines. In the evenings, we spot her returning home with a handsome, mature-looking man. As they sit in their usual spot, an unexpected event unfolds. Witness this intense moment with your own eyes.