Aoi Hazuki, the most admired girl in school, and Hisaya Minato, an average high school freshman, share not just an apartment building but also a deep friendship and routine of visiting each other's homes. Their innocent bond takes a peculiar turn one day as Minato, in a moment of mischief, asks Hazuki to reveal her underwear, claiming they're not in a romantic relationship. This playful request marks the start of a series of increasingly daring demands from Minato, pushing the boundaries of their friendship until it reaches a tipping point. Witness the unfolding of a cheeky coming-of-age romantic comedy involving the school's loveliest girl.