Kurara: Japanese word for dazzling, mesmerizing brilliance.
The act of painting was always kurara to O-Ei, the daughter of the Edo period master painter Katsushika Hokusai. Since her childhood, she was captivated by painting. O-Ei marries a town painter, but she soon chooses art over marriage and divorces him. Once she returns to the family home, she begins assisting her father. O-Ei is by his side as he completes his iconic "Thirty-six Views of Mount Fuji" series. When Hokusai grew too old to wield his brush freely, O-Ei becomes his "brush" and paints on his behalf. It's during this time that she starts to grow a strong fascination with colors as she finally develops her own painting style.
O-Ei / Katsushika Oi (played by Aoi Miyazaki)
Katsushika Oi, known as O-Ei, is the third daughter of Katsushika Hokusai and she is an Ukiyo-e artist in her own right. O-Ei married to a painter, but soon divorced and worked as Hokusai's assistant, helping Hokusai behind the scenes until his latest years. O-Ei continued to devote her life to Ukiyo-e painting even after Hokusai's death.
Ikeda Zenjiro (played by Ryuhei Matsuda)
Ikeda Zenjiro, Ukiyo-e artist known as Keisai Eisen, gained great popularity for his Bijin-ga, portraits of women. Zenjiro and O-Ei sort of grew up together as Zenjiro frequently visited Hokusai to learn Ukiyo-e painting from him. O-Ei had a secret crush on Zenjiro, but Zenjiro, such a dissolute and unruly man, married to another woman and eventually abandoned his career.
Katsushika Hokusai (played by Kyozo Nagatsuka)
Katsushika Hokusai is a world-renowned Ukiyo-e master. Hokusai produced a huge number of great works throughout his career with full of passion and enthusiasm. In his late life, Hokusai called himself "fanatic artist" and wished to pursue his career beyond the age of 100.