The person who saved Shou and Kai from the black-winged clan when they were infants. At first glance he seems cold, but the truth is he's just bad at expressing emotions. He's watched Kai and Shou through much of their lives. A light blue bird is always with him.

Sena is currently a biology teacher at Nyuusei Gakuen. Also the faculty advisor for the firearms club, and in charge of the student dorm.