An alien named Akira (Yuri Tsunematsu), a female student, apparently killed her family, then walked casually in the middle of the street, causing the avoiding half to overturn. The second alien takes over the body of a man. His wife Narumi (Masami Nagasawa) is disturbed by the profound change in her personality. He is Shinpei Matsuda (Ryohei Matsuda). He asked her to guide him.
The third alien took over the body of a teenage boy Amano (Mashiro Takasugi). He contacted freelance journalist Sakurai (Hasegawa Hiroki), who became his guide. Amano admits to Sakurai that he is an alien, and Sakurai finally believes and helps him. The aliens do not threaten their guide. Amano and Sakurai finally found Akira. Although Sakurai was disturbed by the shaking violence, the three traveled together.
Aliens are advanced scouts who invade the earth on a large scale. In order to understand human life or way of thinking, they steal themes or philosophical concepts from humans, and then they can no longer understand them. Therefore, the alien Amano gained "freedom" from the human Amano's parents, and they became enslaved. Shinji took away the "family" from Narumi's sister, who left when she told Narumi to back down. Later, he "possessed" from a young occupant, and he went to the world as a champion against materialism. In many ways, the alien Shinji became Narumi's better husband. He said to Narumi: "The real two sons are broken, I will rebuild him."