Kokoro, who has lived with loneliness since childhood and has never been able to fit in with those around her. At some point, I was no longer able to accept myself. I'm always alone at school... I'll just continue living my life like this, uneventfully.<br /> Even she had someone she admired: a teacher who was loved by all her classmates. It's only natural that kind teachers are well-liked; 'I'm not special in any way.'<br /> One day, I noticed that the teacher's smartphone was pointed at 'Kokoro'. "Teacher... are you perhaps secretly filming me?" She had discovered her teacher's forbidden hobby. But she quietly accepted it.<br /> 'The teacher I admired might be looking at me...and only at me.'<br /> What welled up from deep within her was a forgotten joy.<br /> "Teacher, please look at me, please take a picture."<br /> Their relationship began with a secretly filmed encounter. In the library, in the infirmary, they repeatedly engage in forbidden sexual acts, and they both become addicted to each other's company...