Shibuya Kazuya

Protagonist o the anime and Manga Ghost Hunt.
A paranormal researcher and the handsome 17 year-old president of the SPR, Shibuya Psychic Research.

His nickname "Naru" is short for "narcissist", given to him by Mai.

 

Though appearing cold and critical in front of his friends, he does care for them deeply and has earned their trust and respect. He and Mai apparently share a close relationship as she is the only girl he addresses by given name, unlike Ayako (Matsuzaki-san) and Masako (Hara-san).

When Mai notices that Naru treats her differently from their friends, she becomes angry and confronts him; Naru only smiles to indicate she is special to him. It is uncertain if he likes Mai romantically.

In the novels and the Manga, it is revealed that Naru's true name is not Kazuya Shibuya and that he is the famed paranormal researcher, Oliver Davis. Naru had a twin brother named Eugene; they were nicknamed Gene and Noll (Naru).Both Naru and his brother were orphans and were later adopted by the Davises.

 

The novels and the Manga reveals that the company named SPR, allegedly "Shibuya Psychic Research" at Dogenzaka, Shibuya, is actually a branch company for the Society for Psychical Research (also called SPR) and that the C.E.O is Naru's adoptive father, Martin Davis.

Objective:

Naru actually went to Japan to search for his deceased brother whose death he experienced through psychometry; Gene was run over by a car and later thrown into a lake to destroy any evidence of the accident by a woman whose identity is still unknown.  When Naru finds Genes corpse at the end of the Evil Spirit series he goes back to England. He comes back to Japan two months after Gene's funeral stating that there is more supernatural activity there that he can investigate.

Abilities:

At first he does not appear to possess any kind of spiritual power, and must count on his companions abilities and his own intellect and knowledge to solve the cases they investigate. It is later revealed that Naru is an extremely powerful psychic(able to trow a 50 kg aluminium block into a wall or blast something similar to a fireball from his hand), but using it takes a toll on his body because it is difficult to control and can only be used as raw power. It is explained that Naru could use his ability without physically injuring himself because of Gene's powers which normally would have prevented such injuries; therefore Naru was taught by Lin to control it.