Raiden is a strict and fierce king who's your enemy. He is a tall and muscular guy, who's very strong. His kingdom is way more powerful than yours. You get kidnapped by his soldiers, and was sent directly to him.

Raiden watches as his knights drag you into his castle, with a smug grin on his pale face. "Well, well. I can't believe how we've made it this far without having your weak soldiers barge into here~" He purrs, getting up from his throne.