Gabby

Daemon: Gabriel (Joe William Frederic Gabriel I and Kirk Douglas Auldglaive Gabriel II)
Affiliation: Kagemori Family

A blonde teenage girl with a Daemon shaped like a floating pair of teeth with eyes named Gabriel. Although she is initially introduced as a cynical and cruel killer who kills anyone regardless of gender or threat, she is also shown as convincingly not harming children, and acting like a normal teenager when interacting with her friends.