Baba is a prominent character who serves as the matriarch of Edo Castle in the anime Yoshimune. Her position in the castle hierarchy is one of seniority and influence, and she is depicted as an elderly woman who commands a certain level of respect due to her status, even as she engages in playful and sometimes disruptive behavior.

In terms of personality, Baba is known for her mischievous nature. She frequently occupies her time by playing tricks on the princess, Hime, and teasing Jiji, another elder figure in the castle who directly serves the lord, Yoshimune. This trickster-like demeanor suggests a character who is not content to sit idly by but rather actively involves herself in the daily life and drama of the castle's inhabitants, often for her own amusement.

Her motivations appear to stem from a desire for entertainment and perhaps a subtle form of engagement with the younger generation. Rather than acting with malice, her pranks and teasing seem to be a way of asserting her presence and maintaining a lively atmosphere within the palace walls. She also has a personal life and interests outside the castle's political dynamics, most notably a crush on a singer named Tamagoro, which reveals a more sentimental and youthful side to her character.

Baba also possesses a unique and notable ability: she sometimes experiences out-of-body experiences, often abbreviated as OOBEs. This supernatural trait adds an unexpected layer to her character and fits within the series' surreal and comedic setting, which blends historical Edo period elements with modern concepts and absurdist humor. Her role in the story is largely that of a supporting cast member who contributes to the comedic relief and the chaotic, lighthearted atmosphere of Edo Castle. Her key relationships are primarily defined by her interactions with Hime, whom she enjoys pranking, and Jiji, who is often the target of her teasing.