Since childhood, Kokoro has lived with a sense of loneliness, unable to fit in with those around her. Before she knew it, she had lost the ability to affirm herself. At school, she is always alone... thinking she would just spend her days in a dull monotony. But even she had someone she admired: the teacher, loved by all her classmates. It's only natural that the kind teacher is popular, she thinks, "I'm probably not special to him." One day, she notices that the teacher's smartphone is pointed at her. "Teacher... could it be that you're secretly filming me?" She discovered the teacher's forbidden hobby. However, she quietly accepted it. "The teacher I admired might be... looking only at me." A forgotten joy welled up from deep within her. "Teacher, please look at me, please film me." Their relationship began with the secret filming. In the library, in the nurse's office, they both become addicted to the repeated forbidden sex...