Cyrielle Evrard, aka Cy, was born in 1990. She is a graphic designer, an illustrator and a cartoonist. After a degree in visual communication, she studied illustration at the École de Condé in Paris.

From 2013, Cy collaborated for 2 years with the website Madmoizelle.com, drawing her daily life and the news. She tackled themes such as street harassment and the COP21.

Since 2014, she tries to show the plurality of sexualities and addresses the notions of consent, respect and pleasure in the section Les dessins de Cy(prine). She relies on the testimonies of her readers to tell her stories.

Since 2015, Cy is also present on YouTube, where she publishes videos to advise and share about the graphic design profession. In November 2016, Cy published her first comic book, Le Vrai Sexe de la vraie vie. A second volume was published later, in February 2018. In 2020, in the collection Karma of Éditions Glénat, the comic book Radium Girls, written, drawn and colored by Cy, is released. The story is inspired by the lives of American women workers employed in the watch industry in the 1920s.