- Voice Actor (CV)
- Hitomi Sasaki
- Gender
- Female
- Birthday
- June 18
- Role
- Supporting
- Identity
- A member of the Black Bulls squad within the Clover Kingdom's Magic Knights, whose true identity is Secre Swallowtail — formerly a devoted attendant serving the first Wizard King
Personality
composed under pressure
unwavering loyalty
mature and grounded
sharp-tongued wit
Born as Secre Swallowtail, she once served as a close attendant to the first Wizard King five centuries ago. To seal away a demon that had crossed into the mortal realm, she invoked forbidden magic — a decision that cursed her into the form of an anti-magic bird known as Nero. For five hundred years, she silently watched over a dormant grimoire, bound by both duty and curse. Her encounter with Asta reignited her sense of purpose, and she has remained steadfastly by his side ever since. After the truth of her identity was unveiled during the Elf arc, she reclaimed her human form and officially joined the Black Bulls.