Missing for Five Years, I Returned as the King of Monsters

(Turns into a monster + transforms into a Dark Knight + transforms into the Dark Lead Rider)

After a hundred years in the world of monsters, Bai Ye became a king in his own right, with twelve demon lords at his side, feared throughout the universe. After enduring countless hardships to tear open space and time and return to his homeland to reunite with his younger sister, he finds a completely different world awaiting him.

The [Kamen Rider Century] System has arrived, making Kamen Rider powers available to everyone across the globe! Everyone longs to become a hero and fight off monster invasions from other worlds.

Yet no one knows that this young man, tested as having an [Adaptability: 3%] and dismissed as a “good-for-nothing,” is actually the only monster progenitor born in this world! Every monster he encounters is nothing but food for him to regain his strength.

While Riders around the world battle for rankings and struggle through dungeons, Bai Ye quietly awakens the legendary lieutenants who followed him:

Utopia, who controls gravity; Daguba, who brings ultimate darkness; the Game God, master of the data realm...

Hunted by the world and facing blades raised by former allies, Bai Ye grips the Driver he took by force, demonic shadows gathering behind him. He declares to the entire world:

“I am both the king of the past and the guardian of the future.”

“If the light cannot save the world, then my darkness... will rule over everything.”