One night after leaving a club where he was playing trumpet, Ryou Takagi is jumped by a motorcycle gang. The scuffle spills out into the streets and causes a traffic accident. Because of this, Ryou is arrested and forced to do time. Upon his release, he has developed into a skilled boxer but trouble continues to find him.

In 2007, the inhabitants of Danger Planet II fight their battles using remote-controlled robots or "virtual puppets." Kirio Nimura is a high school student and the strongest puppeteer on the planet, until he falls for Sairi Takahara, who insists that nobody may make advances until they have beaten her puppet, Benkei.

The first theatrical Bonobono movie.