Rika Orimoto

While alive, Rika was a fragile, small-framed girl whose black hair fell to her shoulders, with soft eyes, peach-colored skin, and a beauty mark just under the right side of her chin. Her outfit was a sleeveless black dress, shown as dark blue in the anime, its white collar patterned in little hearts, worn with a pair of purple shoes. Nothing of that child carried into her curse form, which was a huge, monstrous figure with a muscular upper body, lengthy arms, and a shadow-like tail for its lower half. Hidden behind a shell resembling a brain sat one cyclopean eye, several tendrils stretched out from her head, and untrimmed claws hung above a mouth packed with slender, sharp teeth.

In her human days Rika was an innocent girl and Yuta's childhood friend, certain that she loved him, and that feeling lingered well past her death. Turned into a vengeful spirit, she wanted nothing but to keep Yuta safe, though her sheer power frequently injured others along the way. Curse-born instinct pushed her to attack whatever she saw as a danger, yet love for Yuta led her to listen to him and hold herself back. After the curse was at last undone, she managed to forgive him and depart even though he had sworn to pass on with her, confiding before she went that her days at his side as a curse had brought her more happiness than her living years ever had.

Among special grade vengeful cursed spirits, Rika's capacity for destruction had no equal. A Rika fully manifested counted as a grave threat in the eyes of the higher-ups, who doubted that Satoru Gojo himself had the means to restrain her, and merely manifesting her arms sufficed to wound sorcerers and ordinary people both. Once Yuta trusted their connection enough to allow her complete emergence, her strength outstripped nearly all other curses. Suguru Geto, a manipulator whose stockpile of cursed spirits ran past four thousand, named her beyond any doubt the genuine Queen of Curses and staked everything on claiming her, certain that with her he would possess exactly what was required to destroy non-sorcerers. Backed by Rika, Yuta beat Geto and crushed every spirit hurled at them, her physical strikes and speed shielding him from harm. When Geto unleashed Maximum: Uzumaki, Yuta answered by lifting the restraints on her cursed energy, leaving her mightier than she had ever been, yet that very act ended up loosening the curse from her spirit entirely once she chose not to punish him for cutting their bond.

Her cursed energy ran without end, born of being the target of Yuta's naturally vast energy at the instant she died, which made exorcising her all but impossible; while he was cursed, Yuta could reach only a fraction of her might, but a full manifestation let him copy and use cursed techniques in spite of his inexperience, since she could assume the form of any technique. Fully manifested she fought with both physical attacks and jujutsu, once ripping a giant spirit apart with bare hands, and she could shrink to a smaller shape to assist Yuta directly, carrying him for mobility, deflecting attacks, and even bearing wounded allies in a dark sack woven of cursed energy. By pledging Rika his life and an eternal love beyond death, Yuta pushed past the ceiling of her energy and opened her eye, shifting her into a vastly stronger state able to release a beam of Pure Love, called the strongest curse there is, which overcame both Maximum: Uzumaki and Geto's special grade spirit Tamamo-no-Mae Incarnate. Her copied abilities included Cursed Speech, conjuring a megaphone stamped with the Inumaki Family's snake-and-fangs sigil so Yuta could empower his words; ordering a swarm of Geto's centipede curses to die made each one explode violently.