Ki-oon is a French manga publisher founded in October 2003 by Cécile Pournin and Ahmed Agne. It's mostly dedicated to releasing heroic fantasy. It released its first manga in March 2004, the first volume of Element Line. The name "Ki-oon" comes from an onomatopoeia meaning "having the heart inflated with emotion". With an increase in revenue of 80% in 2009, Ki-oon is in 2010 the most important independent publisher of manga in France.