Harumichi Shibasaki

Japanese watercolor painter

Harumichi Shibasaki (born 27 August 1947) is a Japanese watercolour painter, art lecturer and YouTuber from Chiba Prefecture, who studied at Wako University from 1966 to 1970 and has worked as a painting instructor for 50 years. On his YouTube channel, Watercolor by Shibasaki, he is known as Ojiichan Sensei ("grandpa teacher") and teaches painting; the channel had about 2.11 million subscribers in December 2025. He has also held solo exhibitions, including a show of crayon drawings in Ginza, Tokyo, in January 2024.