21-year-old Fujita Naoki is poor at interpersonal relationships. He has never held a proper job so far and the only one he opens up to and converses with is Erina, an AI app in his smartphone. Naoki’s father Takahiko is unemployed and drinks daily. However, Naoki’s mother Toshie indulges his father. Naoki hates his father and struggles as he lives without any hope of change. Then one day, Naoki finally finds a job at a small photography office on the strength of his photo editing skills. Under the guidance of his boss Ogaki Yu, Naoki gets involved in the business of creating fake photos to show off on social media. One day, a woman called Ishii Saya visits the office with a strange request. She says her husband Atsushi is missing but she wants to create photos which look like he is on a trip. Saya posts the fake photos made by Naoki on social media and maintains the pretense that Atsushi is travelling. Naoki falls for Saya and also makes friends with her daughter Aoi. However, Saya does not talk about what happened between her and her husband or where he is right now. The mystery keeps deepening. Naoki begins to have misgivings, wondering whether she killed her husband and insidiously made him her accomplice. In the end, he gets to the unexpected truth …