Karui

Karui (軽い Karui) is the of Kaijin's twin sister, by the name of Kiki (輝 Kiki). She somehow retains her allegiance to Kaijin, and therefore is a part of BLADE. She wishes to get her heart back from YOMI. Concurrently, she is a user of and has displayed the ability to summon and manipulate ; foreign, and her own, surprisingly enough.

Behind the Scenes

 * Karui's name, in Japanese, literally translates to "Light", while Kiki, in Japanese, literally translates to "Shining".