Motosu and Hideki (voiced by Sugita Tomokazu), who grew up in Makino, are unwilling to fail in applying for a university in Tokyo, so they decide to go to Tokyo to attend a cram school. On the streets of Tokyo, Hideki finds humanoid computers everywhere on the street, which are extremely popular in this era. They have beautiful appearances that are no different from humans, and even the touch of their skin is very soft. Poor student Hideki also wants to own one, but due to its high price, he can only watch from a distance. On the way back to the apartment at night, Hideki found a humanoid computer with the appearance of a girl in the garbage dump. Hideki carried it home, turned on the switch, and changed his life from then on. The awakened humanoid computer was named Xiaoji (voiced by Tanaka Rie) because it could only make a "ji" sound. Under Hideki's guidance, Xiaoji gradually grew up like a baby, and Hideki also discovered the difference between Xiaoji and other humanoid computers. Ji, who has his own consciousness and is not controlled by a computer program, gradually developed a good impression on Hideki, but the complex situation between computers and people, machines and bodies made the two hesitate. In addition to Hideki and Xiaoji, there are other stories about people and humanoid computers, some sad and some touching, and these are the most authentic and heartwarming stories that are still being played out in this high-tech age.