Born in 1948 in Onomichi City, Hiroshima Prefecture. Graduated from the Japanese Painting Department at Tokyo University of the Arts.
As a researcher in early childhood education, he has developed a wide range of teaching materials, educational tools, and stationery.
In 2008, upon turning 60, he made his debut as a picture book author. His first work, Shita no Dōbutsuen (The Zoo Beneath), won the 14th Japan Picture Book Award.
In 2015, 30,000 Watermelons received the Grand Prize at the 21st Japan Picture Book Award.
Awards:
Shita no Dōbutsuen — 14th Japan Picture Book Award
30,000 Watermelons — 21st Japan Picture Book Award Grand Prize

Selected Works:
Neko Darake (Full of Cats), Kumon Publishing, 2015
30,000 Watermelons, Kumon Publishing, 2015
Yūdachi (Sudden Evening Rain), Kumon Publishing, 2012
Aiueon, Kumon Publishing, 2009
Shita no Suizokukan (The Aquarium Beneath), Kumon Publishing, 2008