Machiko can't shake the feeling of emptiness in her day-to-day life as a manager of a clothing store in Aoyama, Tokyo. One day, the casual words of Sayaka, a younger and charismatic store staff, stirs Machiko into creating a secret social media account, where she posts a revealing photo of her chest. Machiko becomes hooked on the reaction she gets, something she could never get in the real world, and her posts become increasingly daring. She eventually meets one of her followers, a younger man named "Yuto". Machiko becomes drawn to Yuto, who, like herself, harbored feelings of unfulfillment.