This modern college girl, Sei-chan, is only 146cm tall! Her super petite body can easily fit into tiny diapers! Overflowing pee from her cute, baby-sized diaper! Desperate resistance as she pushes away the camera during intense moments! Screaming "This is so embarrassing!" during forceful baby play in baby clothes! Her genuine, shy reactions are irresistible, capturing the ultimate humiliation of a real amateur girl! A DM arrived on a certain SNS with a contact requesting to appear. It was from Sei-chan (pseudonym), a college student in Tokyo. She's interested in diapers but has no experience yet. Sei-chan herself is a carefree, trendy college girl. Despite her easygoing nature, things took a turn when we started filming her first ever diaper experience! Could it be that our (Sanwa's) standards were too high?! Her cheerful attitude completely changed! Pure, innocent, and cute, this is her first-ever diaper experience documentary.