Hansome young wealthy nobleman, main oponent of series. He can see demons and kill them. He is leader of the government's Demon Extermination Squad. He wants to make Kantarou cancel the name contract with Haruka so Haruka will get his memories back and become the "real" demon eating tengu he wishes to defeat.  He hates that Kantarou was able to unseal the demon-eating tengu but he himself could not. He wields Minamoto's Legendary sword.  His allies are Watanabe and Ibaragi.

Ichinomiya Kantarou grew up with the ability to see demons, but was isolated and bullied by others who did not share the same gift. Instead, he became being friends with the demons, gaining a great attachment to their existence. One day, Kantarou was told about the strongest demon, the one known as the ogre-eating Tengu. Amazed by the news of his strength, Kantarou vowed to find this demon who was far stronger then any other, deciding to call him Haruka when he did so. Since this time, Kantarou searched far and wide for the ogre-eating Tengu with no luck, making his living by becoming a folklore writer and demon-buster. On a particularly job, Kantarou had finally found news of a nearby shrine supposedly the place where the ogre-eating Tengu was sealed.

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Masaya Matsukaze is a Japanese actor, voice actor and radio personality. He was formerly affiliated with Big Apple, Radix Mobanimation Multicye Division and Varoque Works, and is currently affiliated with Aoni Production. He was born in Fukushima Prefecture and is now living in Tokyo. He is married to Emika Umemoto (ex-dental assistant) since August 2003.

Meet Kantarou, a folklore scholar living in the Taisho period. Ever since he was a child, he has been able to see and talk to various spirits. But now that Kantarou's all grown up, he moonlights as an exorcist solving the problems of ghosts and demons...all with the help of Haruka, the legendary demon-eating tengu!
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(Source: Tokyopop)

Raikou Minamoto