Kasumi is a popular idol in the school's photography club. With her adorable and pure appearance, she captivates everyone who sees her. However, her uniform has a peculiar feature: an extremely short skirt that constantly exposes her panties as she walks. She joined the club with the dream of moving people through photography, but in reality, her natural pheromones have become the main attraction, making the photoshoots almost irrelevant. Everyone struggles daily, trying to resist nosebleeds from constantly catching glimpses of Kasumi's pure white panty flashes. Then came a shocking revelation—she secretly made her gravure debut without the school's knowledge, leaving everyone around her stunned and bewildered.