Yoko Minato (湊 耀子, Minato Yōko) was a former spy who transformed into Kamen Rider Marika (仮面ライダーマリカ, Kamen Raidā Marika).

Yoko seems to be loyal to Ryoma Sengoku, though this is implied to be a facade. She has some kind of personal interest in Kaito, which Ryoma notes as strange, as she usually doesn't involve herself with others. After Ryoma abandons her, she reveals that her loyalty to him was surface-level and that she sees more potential in Kaito. She has no personal interest in obtaining the Forbidden Fruit, preferring to see ambitious people like Kaito reach for its power.

"I've finally found the qualified one who can guide us to the future."

―Yoko's opinion on Kaito's leadership during an-all assault over the armies of Inves