Ken'ya Hatsumura

To fight climate change, the governments of the world have passed a law - everyone must train in the ninja arts! But this is part of the evil conspiracy of the Rainbow Serpent Clan! The one who protects humanity against the Rainbow Serpents is - Kamen Rider Shinobi!

In a futuristic world, the "Nanorace," people whose genes contain nanomachines that grant them special abilities, are controlled and suffer prejudice from the "Purerace" of normal human beings. Beck, a legendary hunter with the power of "Red Ash," aims to undergo the surgical procedure to become Purerace. Alongside the large yet timid mechanic Tyger, they use their parallel machine to fly to the old world, doing dangerous jobs.