Venom Fever

The Venom Fever was a massive plauge that spread across the island of Cierce and caused the abandonment of Quesia and Storian. However, 10 youth, 5 from Neutronica and 5 from Sandar, who survived gained super powers from it. It never reached Kamolat as Neutronica's scientists were able to send a vaccine there before it could infect its population.

It is guessed that the Venom Fever occurred while the Kagarangers and Sandarangers were infants.