Starring: Lee Sung-MinLee Hee-JoonLee HoneyKim Won-HaeDirector: Lee Ho-JaeHae-Gwan's (Lee Sung-Min) daughter Yoo-Joo (Chae Soo-Bin) is missing. People around him tell him that his daughter died in the fire.But Hae-Gwan refuses to believe she is dead.One day, he receives a phone call that the caller saw Yoo-Joo on an island. Hae-Gwan goes to that island, but he can't find her there. At night, He sees something unusual and first believes it is a landmine. It turns out it is actually an AI satellite robot which saves every conversation made on a phone. Hae-Gwan thinks he can find his daughter with the help of the robot. He names the robot Sori ("Voice").