Misaki Oga

is Tatsumi Oga's older sister. She was the first head of Red Tail.

Personality
While more even-tempered than her younger brother, Misaki is still rather fearsome when angry (to the degree where even Oga will only pick a fight with her up to a certain point). Like her parents, she quickly accepts Hilda and Beelzebub IV as part of the family, and will not hesitate to criticize or physically punish Oga if she sees him slacking off as a parent. She seem to have a good relationship with Hilda and gets mad whenever Oga does something to make her upset.

History
Misaki Oga was once the leader of Red Tail,though her past experiences haven't been revealed yet.

Because of her status as a Red Tail leader it is possible she was one Ishiyama's leaders during her time.