Hiroki Kobayashi (Gaku Hamada), Shinya Nagai, and Koji Ohta are employees of Kimura Electric, a home appliance manufacturer. In order to keep their jobs, they reluctantly accepted the harsh task of the president to develop an upright walking robot to promote the company in a short period of time. However, the robot "New Sea Breeze" accidentally fell and broke on the day before the exhibition. The three desperate people decided to use the method of puppet audition to select real people with the same body shape to pretend to be robots to get through. Shigemitsu Suzuki (Shinjiro Igarashi) is a 73-year-old old man living alone. With his children away, he decided to find a new job to change his lonely and depressed life after retirement. When he saw the recruitment advertisement of the trio in the newspaper, he pretended to be a robot without knowing it. However, the "New Sea Breeze" that became popular due to an unexpected incident at the exhibition led the situation to an uncontrollable situation. The trio had to tell the truth and continue to seek the help of Grandpa Suzuki. At this time, the girl Ye Zi (played by Yuriko Yoshitaka) who loves robots also began to doubt the authenticity of the "New Sea Breeze"...