Appears in episode 13 of the anime D.N.Angel when Daisuke travels 20 years in the future to retrieve the lost black stone of Shiira.  As he chases the child who took the stone from the fountain in the park, Daisuke notices that he chases the child back to his house, where it is unveiled that his mother, Emiko-san, still lives there.  She calls the child Daichi.  Evidence points to the fact that Daichi is Daisuke&#039;s son.

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.
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(Source: Anime News Network)

**Height:** 163 cm

[Website](http://www.masumin.net/) | [Twitter](https://twitter.com/masumi_asano) | [Instagram](https://www.instagram.com/asano.masumi/)

Married to the mangaka [Kenjirou Hata](https://anilist.co/staff/100074).

Daichi Niwa