The studio has produced in the past a variety of series based on Western literature such as Moomin, Heidi, Girl of the Alps and Vicky the Viking.
These earlier series' animation were commissioned to two other studios: Mushi Production and Tokyo Movie Shinsha, while Zuiyo was mainly involved in the planning.
In the meantime Zuiyo also worked on Vicky the Viking, a German co-production with ZDF and ORF, based on Runer Jonsson's eponymous book series.
Nevertheless, Zuiyo Eizo found itself in financial difficulties due to the high production costs of its series, not enough repaid by the selling of its properties to European market.
Between the 80s and the early 90s, Zuiyo produced in collaboration with other studios some animated series such as Serendipity the Pink Dragon (1983), Elves of the Forest (1984–85), Fairy Dick (1992) and the OAV Fox Wood Tales (1991–92).