Kon is an artificial soul modified by a Soul Society project known as "Spearhead" to inhabit a dead body and use his special powers to help the Shinigami fight Hollows, Kon's special power is in his leg muscles. His name is a short for Kaizo Konpaku. Ichigo uses him to transform into his Shinigami form, leaving him in charge of his body the way normal Shinigami use artificial souls to look after their gigais. When not serving this purpose, Kon usually inhabits a plushy. His normal plushy body is treated with little respect. Kon is quite perverted and is preoccupied by sex much of the time.