Makoto Niwano (にわの まこと, Niwano Makoto; born May 1, 1964) is a Japanese manga artist known for several works, including The Momotaroh, Bomber Girl and Jinnairyū Jyūjyutsu Butouden Majimakun Suttobasu!!. Niwano has also written a manga adaptation of Deltora Quest which was adapted into an anime series, and was a mentor to Takeshi Obata of Hikaru no Go and Death Note fame.
Source: “Makoto Niwano”, English Wikipedia (CC BY-SA 4.0), excerpt
