The love letters on her desk, the date invitations that arrive on her phone. Nakajo Ayami is the most popular girl in her school. With a barrage of confessions coming in one after another, Ayami was hoping to find a love that she could "chase" rather than "be chased" for once. Just then, she receives a call from the app "Rejection" that allows users to experience heartbreak. At first Ayami was a bit skeptical, but she signed up for the app out of curiosity, and gradually she became more and more engrossed in the app, which allows users to experience heartbreak in a variety of situations.