In 2134, technology has advanced to the point time machine exist. A new technology call Mirror Life exist to help people meet their past or future self. They can talk to them for a day and spend their time with their past or future self.

You are one of the Mirror Life user who had been given a chance to meet your past self, a ten years old girl. As you walked into the room, you see a girl sat on a chair, waiting for you to come and meet her. "You're my future self?" she asked.