Always calm and composed, never showing much emotion, Satoshi Hiwatari is a distant, cold, and silent character, though these qualities never seem to affect how close he keeps to Daisuke Niwa. He is extremely intelligent and has a college degree. However, he attends Daisuke&#039;s Junior High School in an attempt to have a normal life. He acts as the police commander in charge of capturing Dark.    Due to his family legacy, he is almost obsessive in his attempts to capture Dark. He is the sole living member of the Hikari family, whose artworks are almost always Dark&#039;s targets for stealing. Satoshi recreates one of Daisuke&#039;s paintings during the incident with the Toki no Byuushin, claiming that he can mimic any piece if he sees it once. His reproduction is a precise imitation, impossible to tell from the original.    He was adopted by a 26-year-old police officer by the name of Hiwatari, and so his name was changed to reflect his adoption. During the course of the story, he begins to care more about Daisuke&#039;s safety. It appears that Daisuke is the trigger for Satoshi&#039;s other personality, Krad, to appear. Satoshi opposes Krad taking control of his body greatly, and has taken on an uncaring personality to &#039;seal his heart,&#039; and thus, Krad. Krad is Dark&#039;s &quot;evil twin,&quot; or opposite, a homicidal blond whose only motivation seems to be getting rid of Dark.

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)

Awards: 
- Most popular voice actor in the Animage Anime Grand Prix (2004)
- Best Supporting Actor at the 1st Seiyuu Awards (2007)

**Non anime roles:**

- Kamisato Ayato - Genshin Impact (Video Game)
- Otto Apocalypse - Honkai Impact 3rd (Video Game)
- Clotted Cream Cookie - Cookie Run: Kingdom (Video Game)
- Phantom - Arknights (Video Game)
- Tatsulot - Kamen Rider Kiva (Tokusatsu series)
- Luocha - Honkai: Star Rail (Video Game)

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.