Bertrand was a knight in the imperial Army and also in the emperor's Personal Imperial Guard. After he got killed by the goddess Mitama, Mitama revived him but for some reason he turned into a girl. Bertrand now lives in the isolation camp like those who revived her. She swore to protect them with her sword and became a follower of Mitama's Religion. The two sister Shiruiru and Aruaru often make some new questionable Outfits for Bertrand, since she received quite a sexy body.