After a mishap with the Waruchin, Chikkun, Takkun, and Miko are teleported back in time, along with Dr. Bell and Giji-Giji. The group realizes they have been sent back to the prehistoric era, and try to seek out a way back to 1980s Japan. Along the way, they encounter an ancient tribe of humans with a god who looks almost exactly like Giji-Giji, and the tribe begins to treat him like royalty.