In a parallel world, a global upheaval unfolds!

Horrifying monsters appear across the globe, but some humans awaken their knight essence and are able to transform into Kamen Riders.

Thus begins the Age of Knights!

Jiang Che, having traveled through time, discovers he's actually a Muggle!

Expecting to draw upon his past life's knowledge, he's bitterly disappointed.

However, after Senior Wang falls for him, Jiang Che awakens the Knight Girls Pokémon System.

Subdue Knight Girls and light up the Pokémon System to earn rewards.

...

Kamen Rider Decade's Darkhearted Girl: Little Jiang Che, come to my room tonight and don't leave! Kamen

Rider Tanuki Junior: Thank you, Senior Jiang Che, for the upgraded Black General buckle. Come to my room tonight and see my new black stockings!

Kamen Rider W Twins (Twin Queens): Let's count your sins!

Water Officer Mezuru (Water Girl): I'm not a Knight Girl, but that doesn't stop me from wanting to be with you!