Riyoko Ikeda
is a Japanese "shōjo" manga series written and illustrated by Riyoko Ikeda. It was serialized in two issues of Shueisha's "Weekly Margaret" magazine in January 1978 and later published in a single "tankōbon" volume under the Margaret Comics imprint on May 20, 1978. Seven Seas Entertainment licensed the series for an English-language release in North America, published on June 26, 2018. "Claudine" is notable for being one of the earliest manga to feature a transgender protagonist.