Emiko is Daisuke&#039;s mother, an extremely hyperactive woman who does not act her age. She prepares Dark&#039;s costumes for when he goes out to steal artwork. She is also responsible for sending out the notices to the police that tell them what, when, and where Dark&#039;s next target will be. It made her very upset as a young girl that she could not become a phantom thief. Emiko is very much in love with her husband, Daisuke&#039;s father Kosuke.

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)

Married to voice actor [Shuuichi Ikeda](https://anilist.co/staff/95598/Shuuichi-Ikeda)

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.

Emiko Niwa

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