[Reducing Mosaic]NMSL-001 Atonement I'm really sorry, that wasn't my intention... A man who lost everything due to a misunderstanding spreading on SNS seeks revenge... A big-breasted high school girl, Ria Yuzuki, falls into a cycle of negativity.

A female college student, 'Ria.' One day on her way home... while riding the train to go back home, she spots a man taking photos of her and posts it on SNS to publicly shame him. Even if it's a false accusation, so be it…
The information spread online also reaches the man's workplace… He gets fired and starts to self-destruct.
Having lost everything, the man decides to take revenge on the girl 'Ria' who caused all of this.