Kei is the Commissioner of the Police department and Satoshi&#039;s adoptive father who appears in both manga and anime. He is ruthless (especially to Satoshi) and he has a great obsession of the Hikari&#039;s artworks, which is also one of the reasons for him adopting their last descendant, Satoshi. He sent Satoshi back to middle school to spy on Daisuke Niwa and also hired the young prodigy to become Chief Commander of Police and in charge of capturing Dark even though that he always interferes. In the anime, he was the one who found the voodoo doll that is Mio Hio and sent her to the same school as Satoshi to make Daisuke wear a magical pendant in exchange of giving her a real human body. It was also found out that he asked Krad to work for him and help him in awakening the Black Wings by searching for an Ax-like object passed down to the Hikari&#039;s, which was later found sealed inside the Hikari Throne(A marble chair with an intact wing on the right and a broken wing on the left) which is found in Satoshi&#039;s room inside his apartment. Although he may be cold, it is shown that he once had a soft side to Satoshi(This is shown once by Hio Mio, wherein he complimented Satoshi while he was painting and that he thought of Satoshi before he died). It is not sure if he actually died at the end of the anime after Mio tried to stop him from activating Black Wings.    Some believed that Kei may have some past relations with Rio Hikari, Satoshi&#039;s biological mother.

Niwa Daisuke is your average teenager, until his fourteenth birthday. He tries to declare his love to the girl of his dreams, but fails. Suddenly, whenever he thinks about this girl he turns into the legendary phantom thief known as Dark Mousy. Daisuke's mother, very much aware of this, makes him turn into Dark and steal valuable works of art for a purpose unknown to Daisuke. As the story unfolds, he learns why, and about his classmate who seems to have the same ability.
 
(Source: Anime News Network)

__Height:__ 173 cm (5'8'')  
__Non-anime roles:__
-Taiga Saejima - Yakuza


Daisuke Niwa is an ordinary, if slightly unlucky, middle school student. On his fourteenth birthday, he comes down with a 'condition' that has plagued the men in his family for three hundred years. When he sees his crush, Risa, he transforms into his alter ego, the phantom thief Dark Mousy. Unfortunately, when Dark Mousy sees his crush, Risa's twin Riku, he transforms back into Daisuke. The only cure for this craziness is if Daisuke can get Risa to fall in love with him ... 

(Source: Tokyopop) 

Included one-shots: 
Volume 1: Namaiki no 'N' (N is for Nishiki) 
Volume 2: OumagaAGAIN (The Demon Returns) 
Volume 4: Kanno-ke wa Kanai Anzen. (Protecting The Kanno House) 
Note: Includes 5 extra chapters.

Kei Hiwatari