Born in Edo (modern-day Tokyo) in 1800, Katsushika Oei was a gifted Ukiyo-e artist whose work long remained in the shadow of her father, the legendary Katsushika Hokusai. Trained within one of Japan’s most influential art studios, Oei developed a distinctive style marked by luminous colour, fine detail, and an unconventional portrayal of women in Bijin-ga prints. This article revisits her life and legacy, shedding light on a remarkable woman artist whose contribution to Japan