Cyann is the central character of a science fiction graphic novel series, The Cyann Cycle by François Bourgeon.
As a pandemic fever threatens to kill a good proportion of the males on the planet Olh, Cyann, daughter of the rich aristocrat Lazuli Olsimar, leads an expedition to the planet ilO intent on discovering a cure for the disease. As the search for a cure is brought to an end on ilO, her adventures continue on other planets, beginning with Aldaal, and going on then to Marcade. In the distant future, purple fevers decimated the male population. Cyann Olsimar, daughter of the local dictator, leading an expedition to Ilo, the original planet where she hopes to find an antidote. Anyway, being suspected of murder, he was far better for her to leave. Cyann has many temperament and worship sentence is:"There are not that ass in life".