Kyo Kusanagi is the heir of the Kusanagi clan, one of the three clans that sealed the legendary snake entity, Orochi. His family's treasure is the Kusanagi Sword, and his family crest is the sun. Due to his heritage, Kyo can control fire. At the age of 18 during the King of Fighters tournament, he won the preliminary in Japan that determined the members of the country's representative team. After he met his rival Iori Yagami, who he decided would be his rival, he discovered more about the three ancient artifactst, which had the ability to seal Orochi, and Orochi’s fate and history. Nevertheless, he has minimal interest about his clan’s past.

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