[1] Uehara is cited by Naoko Takeuchi, author of Sailor Moon, as an influence, especially her dialog in Lolly no Seishun and Honoo no Romance.
Her first work "Flower of Black Cosmos" debuted in 1965 as a rental comic under the pen name of Kimiko Kaneda at age 19.
[3] In 1968, She began working for a commercial magazine as “Kumiko Uehara” when “Shoken Monogatari” was published in the November issue of “Ribon” (Shueisha).
In the 1980s her popular Mari-chan series was published expanding the field of activity to magazines primarily targeting elementary school students.
In the latter half of the 1990s, almost all publications Uehara had works in such as "Flower Comics" (Shogakukan) went out of print, which drove up their prices at used book stores.