Anime-kiko

SHIDO ITSUKA

   
           Voiced by: Nobunaga Shimazaki, Saeko Zōgō (Shiori) (Japanese), Josh Grelle (English)
The protagonist of the story, he possesses a strange power that allows him to seal the powers of a Spirit in his body with a kiss; however, the seal will only work if the Spirit holds enough trust or affection toward him to allow it. Although considering trust and affection is a two-way street he probably needs to have a certain amount of affection too, or at least genuinely want to help the spirit from the bottom of his heart which he usually does even before seeking out a spirit. This ability to seal and contain 99% of a spirit's power might have been given to him by Phantom soon after it turned Kotori into the spirit Efreet. After sealing a Spirit's powers, there will be an invisible link connecting him and the Spirit, through which a portion of the sealed power will flow back to the Spirit if said Spirit's mental state becomes unstable, and back to Shido once the Spirit's mental state restabilizes. So the more angry/distraught/unhappy a spirit is the more power she takes back temporarily while conversely the happier/content/joyful a spirit the more her power level doesn't rise from the minimum level of 1%. He also has the ability to recover from severe injuries which would normally be fatal. This ability is revealed in volume 4 to be due to his having sealed Kotori's power five years prior to the start of the story, and him using her healing ability each time he gets injured. Although this only works on severe or life threatening injuries, minor injuries like scratches and bruises that would heal naturally will heal at a normal human level unless a severe injury triggers the healing flames. Later in volume 5, he discovers he can also use the powers of the Spirits (other than Efreet's) that he has sealed but he can only use the powers in a limited fashion for a short time as even doing one strong attack drained his energy to the point where he almost passed out.
Abandoned by his birth mother, he lives with his foster sister Kotori. He has blue hair and brown eyes, and is in his second year in Raizen High School, class 2-4. He was in despair for a time after being abandoned and subsequently adopted, which made him sensitive to similar feelings from others and wanting to bring them out of it, fuelling his desire to save the Spirits. He meets his real sister Mana Takamiya later in volume 3. In volume 7 Westcott briefly addresses him as Takamiya before switching back to Itsuka.