A bizarre event occurs, the world ends, and Lin Bai unexpectedly obtains the Dark Decade Driver before his death.

From then on, Lin Bai embarked on a journey to gather power from all the heavens and defeat the strange beings.

In the Kamen Rider world: "So you're Oma Zi-O? Then I'll accept your power."

In the world of armor: "Is this the Emperor Armor? Not bad, I'll accept this power as well."

In the Ultraman world: "The Four Mysterious Ultras are indeed terrifying, but this power is mine now."

World order: Kamen Rider - Armor Hero - Ultraman series

The future world is tentatively set...