Kairi Nagata is one half of the Red Dragon Reserve Team tandem alongside Hana Ichinose and is the daughter of the Ace, Akihiro Nagata. She is one of the few people that has the rare trait of possessing two Godsends, one of which being the ability to manipulate water, and the other, the ability to heal.

The healing side is inherited from her mother, Mai, who was a healer for the Red Dragon faction during the time that she met Akihiro. Kairi always preferred being purely a healer as she tends to shy away from violence, but her talent with her Godsend and her will to learn to stand up for herself brought her into Wargames, but in the long term she strives to become the primary healer for Red Dragon.