Orimoto Rik

A special grade cursed spirit that haunts Yuta Okkotsu, also known as the "Queen of Curses." Originally, she was Yuta's classmate and fiancée, a girl who died in a traffic accident in 2011, but soon after turned into a curse and haunted Yuta. She died at the age of 11.

Originally a lovely girl, she became grotesquely hideous and brutally violent after becoming a curse, losing all traces of her former self. Her personality also changed; she mercilessly punished anyone who harmed Yuta without heeding his attempts to stop her. She protected Yuta while not being under his control until he entered the Technical College. She disliked all humans except Yuta, especially women and older men, and hated her grandmother's stewed eggplant.

At the age of 5, her mother died suddenly of unknown causes. Two days before starting elementary school, she went hiking with her father and both went missing. A week later, only Rika was found in a mountain shelter, but her father disappeared and was never found. In the hospital where she was admitted for a check-up, she met Yuta, who was hospitalized with pneumonia, and they attended the same elementary school. At that time, she stole her mother's wedding ring and gave it to him as an engagement ring. Rika's paternal grandmother, who took her in, was convinced that her son and his wife were killed by Rika. While alive, she had a friendly relationship with Yuta's sister, but became aggressive after becoming a vengeful spirit, which led to Yuta distancing himself from his family.

Even after becoming a curse, she was initially thought to have turned into a curse due to her excessive love and attachment to Yuta.

Due to Yuta's "binding vow to detain the soul of his beloved," she possessed a versatile and bottomless cursed energy, which enabled Yuta's "bottomless cursed energy" and "unconditional technique mimicry." Rika was connected to Yuta through his engagement ring, which also served as a medium for his cursed energy. Gojo and the upper echelons of the Jujutsu society viewed her immense power as a threat.

On December 24, 2016, during the Night Parade of 100 Demons, Rika and Yuta fought fiercely against Suguru Geto and emerged victorious. After the battle, it was revealed that it was not Rika who had cursed Yuta, but Yuta's own obsession with Rika that had turned her into a vengeful spirit, and the curse was lifted when Yuta broke the master-servant vow. Ultimately, she regained her original form, expressed her gratitude, and passed away with a smile. Her will continues to live on in Yuta's external technique "Rika."