Jonna Agrippa

Jonna shares the Agrippa family's habit of speaking quietly and maintaining an unsettling appearance. Visitors unfamiliar with the family can easily mistake their mannerisms for hostility.

Her behavior at home is nevertheless that of an ordinary mother and wife. She participates in the family's dinner with Gordon and his companions and helps care for the elderly Nilenia Agrippa.

Jonna belongs to a family with extensive knowledge of curses and magical medicine, but the series does not establish a personal magic attribute or named combat spells for her.

Unlike Gordon and Nathan Agrippa, she is not given a significant magical role in the family's research. Her appearances center on domestic life rather than combat.

Jonna appears when Gordon brings Asta, Gauche Adlai, and Grey to the Agrippa family home while investigating information concerning curses and devils.

The group's first impression of Gordon's relatives is deliberately ominous, but the visit reveals that the family is far more welcoming than their appearance suggests. Jonna joins them for dinner while Nathan explains the family's history and research.

The visit eventually provides Gordon and his companions with information pointing them toward the Heart Kingdom and the curse associated with Megicula.

Gordon Agrippa is Jonna's son and a member of the Black Bulls.

Nathan Agrippa is Jonna's husband and the head of the Agrippa household.

Roxanne Agrippa is Jonna's daughter and Gordon's younger sister.

Nilenia Agrippa is Jonna's elderly mother-in-law, whom she helps care for at home.