Blue Star Tsubasa suddenly fell into coma while reviewing his childhood classic "Kamen Rider V3" on DVD at home. When he woke up, he found that he had traveled through time and space in the original Kamen Rider V3, where Shiro Kazama's cousin Tano Hoshibasa did not exist.
After time travel, crises ensued. The Kazama family died tragically in front of them. The original owner's former friends turned into new Destron cadres. Strange people who had never appeared before continued to emerge. How should Tano Seishi and Kazama Shiro deal with it?
