Claire Kagenou

Claire (クレア・カゲノー) is the older sister of Cid Kagenou and heir to the Kagenou Family.

Appearance
Claire is a young woman with a tall, slender build. She has long black hair and red eyes. She wears the Midgar Royal Spellsword Academy uniform consisting of a blazer jacket, dress shirt and stockings.

Personality
Being the heir to the Kagenou family, she has to be uptight and stoic in order to maintain her family's reputation. She also possesses a sharp tongue and doesn't mind criticizing or insulting people including her own father, Mr. Kagenou, who she called him 'baldy' due to his cowardice.

Although her biggest flaw is her reckless behavior which has gotten her in trouble on multiple occasions. This reckless side of her is often shown when she is worried about her younger brother, Cid Kagenou. When princess Alexia is kidnapped and Cid is being interrogated as a "suspect", Claire inmediatly rampages and attempts to rescue him, only being stopped by Rose Oriana who had to use brute strength nearly breaking one her arms, but even this wasn't enough to stop her, inmediatly attempting to attack princess Iris seeking for revenge for the torture they made to Cid.

Training as a Spellsword
Claire was born to Mr and Mrs Kagenou of the Kagenou Baron Family. During her childhood, Claire was trained in swordsmanship and magic in order to continue on the family name. At age 12, Claire often trained with her younger brother Cid outside their house. Unfortunately, she was disappointed in his underwhelming performance and berated him for it before choosing to punish her brother. Despite this, she still sought to practice with him whenever possible as she would refine her skills better than with anyone else.

Learning of her Curse
At some point in time, Claire learned that she contracted Demonic Possession. Fearful that she may not live long, she dedicated much of her time with Cid and prepared him for the future. Unbeknownst to her, Cid had already cured her.

Kidnapping and Rescue
3 years later, Claire was ready to leave to the capital of Midgar Kingdom and attend the Midgar Royal Spellsword Academy. The night before her departure, the Order of Diabolos infiltrated her family home and kidnapped her with the purpose of using her for their experiments.

Claire was held inside a dungeon where she learned that her kidnapper was Viscount Olba. After delivering some cruel comments about him, she was inquired by Olba if she had suffered Demonic Possession. She vaguely confirmed it but she accidentally brought up about Cid during their conversation causing Viscount Olba to decide to bring him in as well for questioning. Claire, enraged at this, broke free from her chains and attacked the viscount only to have the latter knock her unconsciousness. She was rescued by Cid and his Shadow Garden and returned home.

Confronting the First Princess
Claire hurriedly confronted Iris Midgar after learning that her brother was suspected for kidnapping Iris's sister, Alexia. She knew that whether or not Cid was a suspect, this would ultimately lead to his execution. Claire vouched that her brother was innocent. This did not move Iris, causing Claire to nearly assault her but was dragged out before that could happen.

God of War Festival
When the God of War Festival began, Claire became her school's representative after the previous representative, Rose Oriana became a fugitive. She head to Cid's room to invite him to see her matches. Much to her anger, he was gone. She eventually found her brother and throttled him for making her wait at his dorm. Claire explained to Cid and offered him a ticket to a special seating at the tournament.

At the very end of the tournament, despite several incidents that had occurred, Claire ultimately won.

Red Moon Incident
After winning the God of War Festival, Claire was treated to dinner at Mitsugohsi Co's restaurants by Cid. While there, Claire expressed disappointment at Cid for falling behind his studies and not thinking enough about his future. Hence, Claire proposed to her brother that she was going to take him to Lawless City to take part in the assault during the Red Moon event in hope to gain some credit and secure a better position for him. Once they arrived, Claire left Cid alone while she attended a meeting between swordsmen to form a plan to subjugate the Red Tower. When she returned, Claire discovered that her brother was missing. She headed out to Outlaw City to search for him and encountered a Vampire Hunter named Milia. Milia informed Claire that her brother might have being taken to Red Tower where he will be sacrificed. Because their goals aligned, the two agreed to work together.

Using a tunnel to bypass the vampires and ghouls, Claire and Milia met Beta and Shadow Garden who were there to get a sample of the progenitor's blood due to similarities with Demon Possession. Claire asked Beta if there was a way to cure Demon Possession for which Beta did not clarify but informed the former not to worry about it, much to Claire's confusion.

The two then encountered Tyrant who decided to kill them. They were nearly overwhelmed until Milia forced herself to reveal her secret to Claire, becoming a full-fledged Vampire to defeat their enemy.

With Tyrant gone, the two finally reached the tower where Elizabeth was finally resurrected. Claire was impaled before the Vampire Queen grabbed her and sucked her blood, allowing Elizabeth to regain full power. Thankfully, Claire was saved by Aurora who took over her body and unlocked her full abilities to combat Elizabeth. This fight held the Vampire Queen long enough for Shadow to finish it.

After the battle, Claire reunited with Cid and the two siblings leave Outlaw City but not before saying goodbye to their vampire friends.

Powers & Abilities
Claire is a prodigy that is hailed as the future of her house. Having trained since childhood, Claire's abilities are superior than those of normal Spellswords. Thanks to training with Cid, Claire learned how to efficiently control her mana usage, which allows her to defeat opponent whose mana pool is bigger. At the age 15, she is strong enough to easily break chains bounding her and despite getting her skin ripped in the process. She barely reacted to the pain due to the intense rage at Viscount Olba from the threats towards her brother's life.

She was also strong enough to win the God of War Tournament; albeit the top contenders (e.g. Rose Oriana, Iris Midgar, Beatrix, and "Mundane Mann") did resign before facing her.

Cid Kagenou
Claire had shown to be stern and strict to her younger brother Cid, who she constantly trained and scolded whenever he was slacking off. Although she's strict towards her brother, Claire deeply loves him and is genuinely trying everything she can to toughen him up and to secure a better future for him.

When she was little, Claire had gotten into her fair share of troubles due to her reckless behavior, only to be saved by her brother. She loves him for this. Hence, she gets upset when people think so little of Cid and that the two are miss-matched siblings.

Another possible factor for her over attachment to CId was her learning that she had Demonic Possession, causing her to believe that she had little time left and chose to spend as much as she can with him, completely unaware Cid had already cured her.

She had shown to be overly protective for her brother. If someone shows the intention to harm him, she will unleash her rage on them. Not even Princess Iris was exempted from her wrath when she had her brother detained.

Mr. Kagenō
Claire's father; she holds no respect for him due to him being a coward who constantly tries to get out of his responsibilities as family head, even leaving her to fend for herself when she was kidnapped by the Cult of Diablos. Claire doesn't hold any qualms of insulting her father by calling him as baldy.

Mrs. Kagenō
Claire's mother; their exact relationship is unknown, though she seems to at least respect her more than her father.

Rose Oriana
In the anime, Rose was shown to be the only student at the Midgar Royal Spellsword Academy capable of keeping Claire in check.

Trivia

 * Ever since she was kidnapped, Shadow Garden has kept her under constant secret surveillance, in order to protect her in case the cult attacks her.