Choujin Bibyun ran for thirty-six episodes from July 1976 and March 1977 and follows on from the destruction of the bodies of Akumaizer 3, luckily though our heroes souls are reincarnated into Choujin Bibyun, and now they have human forms too!
After the deaths of Zabitan, Gabura and Iberu (Evil); their spirits entered the bodies of three men, giving them super powers to fight the new evil threatening Japan. Alhough this was a sequel to Akumaizer 3 it was a very different show. First the three heroes were humans who transformed into the super heroes when needed. Second the monsters instead of being demons (akuma) were ghosts (yokai).
The spirit of Zabitan entered the body of gymnist Tsukimura, Kei (Araki, Shigeru) giving him the power to transform into the fire/air warrior Choujin Bibyun. Bibyun was armed with the “Sky Sword”. Bibyun would stick Sky Word into the ground to activate “Sky Radar” in order to locate monsters or to use “Sky Sword Fire” (similar to Kamen Rider Stronger’s “Electro Fire””). Bibyun could use Sky Sword to draw shapes in the dirt then transform those shapes into three dimensional objects. For his final attack Bibyun would turn into a ball of fire to explode the monsters. Araki, Shigeru previously played Jou, Shigeru/Kamen Rider Stronger.
The spirit of Gabura entered the body of weightlifter Watabe, Go (Yuchida, Yasuhiko) giving him the power to transform into the earth warrior Choujin Zushiiin. Zushiin was armed with an earthquake causing staff “Mokane” and a top that can drill into the earth. Zushiin could transform into “Zushiiin Ball”, a boulder, so he could roll over the monsters. He could also turnhimself into a pile of dirt. Yuchida, Yasuhiko played Apollo Geist in Kamen Rider X.
The spirit of Iberu (Evil) entered the body of swimmer Suga, Ichiro (Sakada, Toshihiko) giving him the power to transform into the water warrior Choujin Bashaan. Bashaan was armed with the water gun “Pepe”. Bashaan could turn into a ball of of water or a fountain of water. He usually appears on the scene coming up out of the nearest body of water.
Bibyun, Bashaan and Zushiiin were assisted by Crimson Shark (Beni Sharkku), a living aircraft which could shrink to the size of a model plane or grow large enough to carry them. In the early episodes Crimson Shark would fly around looking for ghosts and demons. When it spotted them it would summon Bibyun, Bashaan and Zushiiin to the scene.
It was metaphyscacist Dr. Daima who summoned the spirits of Zabitan, Evil and Gabura. He became mentor to Bibyun, Bashaan and Zushiiin. Instead of Darunia the three magical warriors were assisted by female police agent, and ninth level ninja Akechi, Lisa