Two questions.
1) Are submissions closed?
2) Does every character have to be a Rider? Because I think my character really should be a kaijin. A kaijin who's considerably more reasonable than most and willing to be an ally, like a more protagonist-grade Nazca, but still a kaijin.
(If you're wondering "Why would a kaijin work with Riders?"... well, hell, she's not stupid. She sees how monster vs. Rider battles tend to go. She'd much rather be on the Riders' side than the other monsters' side, all things considered.)