Kizaia Hinokami

Kizaia is Aisaku's senpai in school. Rumor has it she's a princess of a country. She is cold on the outside (especially towards Aisaku because she thinks he doesn't know anything about her, while still saying stuff as though he does), but in reality she seeks warmth from people.

She is wild, hot blooded and also one of the strongest Zelk-Riders, called "Arts-Knight Princess". Her battle mode is, like her speech, blazing hot and full of confidence.

Spoiler

She is the real Kizaia who put her clone in her place to lead the events from shadows.