Nikita, a werebear from Russia, possesses a tall, muscular frame, two-toned skin with patches of darker and lighter pigmentation, a long brown mohawk, green eyes, and hairy ears. Intelligent and typically composed, she sometimes uses Russian terms like "Chernyy" for Yasuke. However, her beast nature unleashes a wild, aggressive fighting style upon transformation. Initially hired with her mercenary group by the priest Abraham to locate a girl named Saki, Nikita utilized her enhanced senses of smell and hearing to track targets. She found Yasuke's village, identified individuals linked to Saki, and captured a contact from a bar. Her group pursued Yasuke and Saki relentlessly; Nikita persistently followed Saki's scent even through obstacles like a fish wagon that briefly masked the trail. After Saki and Yasuke killed Abraham, Nikita and her comrades deemed their contract fulfilled, accepted their payment, and allowed the pair to leave without further conflict. Later, Nikita's group accepted a telepathic offer from Saki, promising doubled payment for aiding Yasuke against the Dark Army. They joined Yasuke's forces at Morisuke's temple. During a large-scale attack, Nikita witnessed the deaths of comrades Ishikawa and Haruto. As the survivors retreated toward the temple, she volunteered to defend the gates alone to delay the enemy. In this final stand, three enemy magicians immobilized her against a wall, using their powers to twist her body and organs internally, causing her death. Nikita's abilities included enhanced sensory perception, communication with animals and nature, and transformation into a large bear-like beast with claws and vastly increased strength, a form depicted in merchandise like a super-deformed vinyl figure.