Nagata Yūji whose artist’s names were Seisei-shi青々子, Masatoki方祝 was a lacquer master who lived in Kyoto in the 18th century Edo period. His name can be found in the anthology of lacquer masters’ stories Makie-shi den (published in the mid-19th century). He always signed his name on his work, which is rather rare for a lacquer worker. It shows his confidence and assurance on his quality of work. As his pseudonyms show, his dedicated to Rimpa School (Seisei青々and Masatoki方祝 are the names which the grand figure of Rimpa School Ogata Kōrin used). Even Ogata Kōrin had passed away when Nagata Yūji started his career, he designated himself as an apprentice of Kōrin.