Rika Orimoto

Rika Orimoto (折本 理香) is a character in Jujutsu Kaisen 0: Jujutsu High.

Appearance
Rika has long black hair that extends past her shoulders, and thin eyebrows.

Rika wore a sleeveless black dress with a white collar that has multiple hearts along the edge, and black shoes.

As a cursed spirit, Rika has a large muscular upper body and a black tail for the lower body. Rika has a single large eye that open horizontally, a large mouth with a few large sharp teeth, and multiple black tendril that come out of the back of her head.

Personality
Rika was an innocent young girl and childhood friends with Yuta. She shared a special connection with Yuta and believed that she loved him. These continued on ever after death. As a vengeful spirit, Rika desired only to protect Yuta, but her great power often caused her to harm others in the process. While she had curse-like instincts to attack anything that was a threat, Rika still listened to Yuta and restrained herself because of her love for him.

After being freed her curse, Rika was still able to forgive Yuta and leave him behind despite his promise to pass on with her.

History
In 2010, Rika is in a park with Yuta were she gives him a birthday gift. The gift is a ring and the two promise to marry each other when they grow up. When they leave the park, Rika is killed in a car accident. Yuta then curses Rika, and caused her to be attached to him.

Cursed Child Arc
In November of 2016, Rika had stuffed four students in a locker that were bullying Yuta. After this event, Yuta was taken to the Tokyo Metropolitan curse school. During his isolating, Yuta tried to kill himself but Rika got in the way and saved him. It was during this time that its was decided that Yuta would enroll into the college in order to exorcise Rika one day. When Yuta met his fellow classmates, they notice Rika and confront him. Rika shows up and forces the three to back away from Yuta. Once the three settle down, Gojo explains the situation that is happening with Yuta.

Yuta is then given a mission with Maki, were they have to exorcise a spirit that had kidnapped some kids at a school. When Yuta and Maki are swallowed by the spirit that had kidnapped that children, Yuta summons Rika to exorcise the spirit while Yuta brings Maki and the children to safety. After this mission is completed, Gojo informs his superiors what they know about Rika.

Days later, Yuta is sent on a mission with Toge and told to not let Rika out during the mission. During the mission, a powerful spirit appears and becomes concerned when it senses Rika.

On December 24, Geto comes to the college in order to kill Yuta and add Rika to his collection. When Yuta finds out that Geto has harmed his friends, Yuta fully summons Rika. Yuta and Rika then fight against Geto and all the cursed spirits that he has collected. While fighting, Rika manages to collect all of Yuta's friends and the two get them to a safe location. As Yuta starts to heal his friends, Rika get jealous of Maki and grabs her. Yuta tells her to let Maki go, which Rika releases Maki and apologizes for what she has done. Yuta then points out that Geto is their enemy, which Rika says that she hated Geto too.

Rika and Geto then continue their fight with Geto, which Yuta uses Rika's power to easily destroy Geto's cursed spirits. Geto manages to figure what Rika's abilities are and desires Rika even more. Rika and Geto then fight Geto in close combat, which Geto manages to overwhelm Yuta. Rika sees that Yuta is being overwhelm and quickly brings Yuta away from Geto. Yuta manages to get used to Geto fighting style, Yuta manages to push Geto into a corner. When Geto decides to throw all his spirits at Yuta, Yuta brings to thank Rika for always helping him. Rika then gets excited when Yuta kisses her, which Geto notices that Yuta is planning to sacrifice himself to remove the limits on Rika. Rika then fires a blast, that manages to defeat Geto and his spirits.

When Yuta falls unconscious, Rika waits until Yuta wakes up. Maki, Toge, and Panda show up when Yuta wakes up. Yuta informs that in order to defeat Geto, he had to sacrifice himself to release Rika's powers. As Yuta prepares to join Rika, Rika suddenly returns to appearance when she was alive. As they are all confused by this, Gojo shows up and informs them that Rika has now dispelled. Gojo explains how it was Yuta that had cursed Rika when she died, because he could not accept her death. As Yuta starts to blame himself for everyone that was hurt by Rika, but Rika hugs Yuta and explains how she was truly happy being by Yuta's side for the past 6 years. Rika then bids Yuta goodbye and disappears.

Cursed Power and Form
Rika's cursed power is an endless mass of cursed power that can be shaped at will by the one that she is possessing. As revealed during the prequal, Rika herself is just an average human girl and lacked any form of cursed energy while alive and her immense power itself was from being accidentally cursed by her childhood friend,Yuta Okkotsu.

Trivia

 * Rika's surname contains the kanji for "occasion" (折) and "origin, base" (本), and her first name contains "logic, reason" (理) and "fragrance" (香).