Kai Miyagusuku

Kai Miyagusuku is the tritagonist of the anime series Blood+. He is the adoptive 'older' brother of Saya Otonashi and the biological older brother of Riku Miyagusuku.

He is voiced by Hiroyuki Yoshino in the Japanese version of the anime and Benjamin Diskins in the English version, the former of whom also voices Firo Prochainezo.

Appearance
Kai is a tanned, athletic teen with brown eyes and average height. He has orange hair throughout season 1 & 2. After the year lapse from Riku's death, his hair is shown to have turned to brown and complexion a bit fairer (probably due to going out only at nighttime chiropteran hunting). He is 5 feet 9 inches tall.

Personality
In the beginning half, Kai is shown to be quite immature and selfish. He jumps to actions without thinking and fights out to subdue his inner conflicts. After George's death, he becomes the man of the family and tries to bind themselves together. However, he is over protective of both Saya and Riku. As he struggles within himself regarding Saya after knowing her true identity, Riku also changes into something other than human. When Riku nearly died after Diva's attack the only reasons Kai could give for making Riku a chevalier were that he didn't want to lose Riku and end up alone. Even after hearing Kai's two completely selfish reasons, Saya still made Riku her chevalier. After Kai had finally come to accept the fact that Saya and Riku are different from him and manages to believe that they can still be a family, Riku died at Diva's hands.

Riku's death changes Kai. He faces his responsibilities, hones his skills to be ready, bears the torch of Red Shield to keep hope alive. He believes that Saya will come and his faith pays off.