Yumiko Tanaka

Two men, tired from work, visit the town of Chichibu to enjoy their favorite hobby - exploring caves. But little do they know, the town has been secretly protected by the descendants of the righteous Shinobi ninja since the Sengoku period. The two unlucky friends accidentally break a spell that awakens two colossal beasts, Jaron and Goura. The area’s rival clans manipulate them into a fierce battle, bringing chaos to the area. But a righteous female ninja steps up, wanting to stop the destruction and restore the seal. Can she defeat the evil ninjas that stand in her way before Chichibu is completely destroyed by two kaiju?

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The Dogma Kingdom attacks the Matagi (mountain tribe) village of Yamabiko to steal the sacred Flying Dragon Fortress and wreak havoc all over Japan. Six children from the fallen village take refuge in a nearby town, keeping their identities as Matagi citizens a secret. Kamen Rider Super-1 must protect these children from the Dogma Kingdom, as they hold the secret to the Flying Dragon Fortress' weakness.

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Kazuya Oki volunteers to undergo cybernetic surgery in the International Space Development Program in the United States to become an astronaut who can survive in outer space without the need for a bulky external suit. After a successful operation, he is given the codename "Super-1". Before he can depart for space, however, the base where he received his operation is attacked by the Dogma Kingdom. Only Kazuya can escape and is determined to avenge the deaths of the scientists, he returns to Japan and is trained by a martial arts expert, Master Genkai. With this knowledge, he can transform into the powerful Kamen Rider Super-1 to fight the evil Dogma Kingdom and later Jin Dogma.

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Denzimen are warriors who fight against the Vader Clan, a clan that tries to pollute the Earth with sludge. Denzimen fight using the Super Science of the Denzi people.

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