Kikuri’s personality is a mix of childish mischief and unsettling cruelty. She behaves impulsively, driven by whims without much concern for logic or consequences. Kikuri is highly demanding and seems to relish having things her own way, often going out of her way to annoy Ai’s other companions. She mockingly calls Wanyuudou “baldy,” Hone Onna “old woman,” and Ichimokuren “eyeball,” highlighting her playful but relentless teasing. She delights in interrupting her companions’ duties and causing low-level chaos, like cutting flowers just for the thrill of it.

Beneath her childlike appearance lies a twisted sense of humor and a tendency for cruelty. She frequently shows a lack of empathy, even laughing at those in distress. On one occasion, she giggled at a dying man, and she also teased Takuma Kurebayashi despite the extreme hardships he was enduring. Kikuri’s cruelty sometimes extends to Ai herself, as she has taunted Ai on several occasions.

Kikuri is almost always dismissive of others’ advice, ignoring everyone except Ai. When Ai intervenes, however, Kikuri’s demeanor changes; she obeys Ai without question. For instance, when Ren told her to leave a place, Kikuri refused until she realized Ai would be displeased. Only then did she reluctantly comply, though not without kicking Ren on her way out. Another example is when she was meddling with Ai’s grandmother’s spinning wheel, ignoring the grandmother’s warnings until Ai instructed her to stop.

Despite her negative traits, Kikuri also shows moments of innocent curiosity and attachment. She enjoys exploring the human world, drawn by its novelty, and is genuinely playful, inviting Takuma and Tsugumi to play with her on multiple occasions. She frequently visits Takuma’s home, seeking companionship. Food-wise, she has a particular fondness for wieners, and she has an obvious distaste for vanity, once expressing her annoyance at Ren for being overly self-satisfied. Kikuri is also especially fond of Ai and Yamawaro, showing genuine affection. Her bond with Ai becomes evident when she sheds tears after Ai’s death near the end ofTwo Mirrors, and she even compliments Ai for being freed from her duties, as if acknowledging her accomplishments.

Kikuri’s more unsettling traits raise questions about her true nature. Since she is a vessel for the Master of Hell, it’s unclear how much of her behavior is her own and how much is influenced by this entity. This ambiguity grows inThree Vessels, where a tiny spider is shown entering a toy doll, which then transforms into Kikuri, suggesting she may be more of a controlled puppet than an autonomous spirit. This raises speculation about whether Kikuri’s personality traits are solely hers or partly the result of the Master of Hell’s influence.

Kikuri’s origins remain a mystery, and little is known about her life before she appears in Hell Girl. What is clear, however, is that she is not human in her current form. Despite this, she exhibits some human traits that even Ai and her companions rarely show. Kikuri has a strong desire to play purely for fun, and she sometimes displays vulnerability, even falling asleep—behaviors that hint at a more childlike nature. Unlike Ai’s other companions, Kikuri has moments where she appears genuinely tired, needing rest, though it’s unclear if this is due to her otherworldly nature or her temporary, doll-like form in Three Vessels.

It’s later revealed that Kikuri serves as a host for the Master of Hell, who occasionally possesses her to interact with the world through her body. This revelation raises questions about her autonomy—how often has the Master controlled her actions without anyone noticing? When possessed, Kikuri only senses a strange itch on her forehead before completely surrendering to the Master’s influence, seemingly unaware of her role as a vessel. The Master of Hell possesses her twice on screen: once near the end of Two Mirrors, and again in Three Vessels.

InThree Vessels, Kikuri reappears after seemingly losing her original form, now inhabiting a wind-up doll to remain physically present in the human realm. In this state, she relies on a key wound into her back to move, though she can still speak even when the key stops turning.

Due to her erratic and mischievous behavior, Kikuri is mostly disliked by Ai’s first three companions, as well as by Takuma. She often annoys them intentionally, disrupting their tasks and poking fun at them with nicknames. However, Ai seems to tolerate her, while Yamawaro is especially fond of her—a feeling she reciprocates. Kikuri affectionately calls Yamawaro “Waro Waro,” sometimes even showing genuine concern for his well-being, and she once threatened to send his tormentors to Hell. Still, Kikuri treats him somewhat like a servant, expecting him to wind the key on her back and calling her “Princess Kikuri,” a demand Yamawaro readily accepts.

Despite their dislike, Ai’s other companions show a degree of care for Kikuri. Wanyuudou, for example, once went out of his way to find her when she was missing, and even fought off two men who threatened her.

Traveling Between the Normal World and the Realm of Eternal Twilight
Kikuri can travel freely between the normal world and the Realm of Eternal Twilight, a rare ability shared only with Ai, her companions, and the Master of Hell. Additionally, Kikuri has the unique capacity to bring others in and out of this realm—a feat only Ai and her grandmother have demonstrated apart from her.

Magically Changing Clothes
Kikuri has the ability to change her attire magically, similar to Hone Onna, particularly when observing or interacting with Ai’s clients or antagonists. This ability allows her to blend into different settings with ease.

Teleportation
Kikuri often appears and vanishes without warning, creating the impression of teleportation. However, it is suggested that she achieves this effect by shifting between the normal world and the Realm of Eternal Twilight rather than through pure teleportation.

Loincloth Manipulation
Kikuri can use her loincloth to perform various magical feats, utilizing it as a versatile tool for binding, suspending, or manipulating objects with great precision and control.

Hypnotism
On rare occasions, Kikuri demonstrates the power of hypnotism, influencing people to believe certain things. InTwo Mirrors, she used this ability to make a woman believe that Kikuri was her daughter, though this ability has only been shown once.

Levitation
Kikuri has been shown to levitate in one instance, but the reason she doesn’t utilize this ability more frequently remains unknown.

Reviving and Waking People from Coma
In a unique instance, Kikuri displayed the ability to revive someone from a coma of significant duration. She accomplishes this by touching the comatose person’s lips with her own, using her lips and tongue as part of the revival process.