Yumi Tsukirino

Yumi Tsukirino (born January 5, 1950) is a Japanese manga artist born in Saitama Prefecture. Representative works are ''Magical Pokémon Journey'' and ''Fluffy, Fluffy Cinnamoroll''. Nicknamed YOji, she previously used the pen name (which is pronounced the same as her current name but uses different Japanese characters).

In addition to creating the art for the OSTER project albums, she has also created art for singles such as Miracle Paint. Provided by Wikipedia