Kankou Nagai

Solomon fights the harmful use of witchcraft using a database of witches, which includes those who have obtained the power of witchcraft through genetics and others who carry the gene in order to arrest or eliminate them should their powers "awaken". The series focuses on one STN-J member, Robin Sena.

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.

Bioman must rescue two boys who possess an ancient treasure map that leads to Biobase, making them targeted by Gear.