Muroyama Mayumi
Muroyama Mayumi (室山まゆみ) is the joint penname of Japanese manga artists Muroyama Mayumi (室山真弓, born 1955-08-30) and her younger sister Muroyama Mariko (室山真里子, born 1957-09-27). They made their professional debut in 1976 with Ganbare Aneko in Shoujo Comic. (Source: Wikipedia)
Muroyama Mayumi is credited as an author on 1 readable work in this catalogue, with publication years from 1978 to 1978.
Common themes in this collection include Comedy, Episodic, Family Life, Female Protagonist, Primarily Child Cast, School Life.
Metadata source: AniList