Yoshida is a young man who works part-time at a convenience store. When he finishes his part-time job and is about to go home, a girl who works with him, Taniguchi, stops him by saying, "I have a request for Yoshida-kun."
Based on the comic book by Tatsuo Kanai
Five descendants of the people showered with Bio Particles by Bio Robots five centuries in the past have become Biomen. They transform with the Bio Brace and fight using their Super Electronic Brains on their masks. Their Bioswords are equipped with sword and gun modes.
A juvenile delinquent code-named Saki Asamiya is taken in by the government and forced to fight crime to redeem her actions. She is sent to various high schools to infiltrate and neutralize gangs and other forms of crime as a police officer using her metal yo-yo badge as a weapon.
