Kanna Asagiri

Kanna is a high school girl that lives with her mother in an apartment. When Kanna's mother was pregnant with her, she was threatened by demons to offer her child as a bride. Her mother offered her to marry the most poweful demon, Kaki and that's why she was always avoiding her.

As a bride of a demon, Kanna has a flower mark on her chest given by Kaki. The mark implies that Kaki must send his guardians to protect Kanna until she is 16 and then marry her. But Kanna never received that protection. She is a quiet, emotionless girl because of the hardships that she had to go through.