The city of heroes. Weno Kh.

Young inventor Hiro lives in San Fransookio and studies at the university with his brother Tadashi, who was always an example for him to follow. The hero is preparing for the competition of beginner inventors and creates something completely new - microbots that can accept an incredible set of forms. Once, during the tragic events, Hiro loses his brother.

In order to understand what happened and bring a person in a mask of kabuki to clean water, Hiro creates a team of superheroes ready to resist evil.