The series stars Chiwoo, who discovers that his father was a mangnani, an executioner in ancient Korea. An emperor's army attempts to wipe out all mangnanies. After Chiwoo sees Uncle Wolbak attacked by soldiers, Chiwoo becomes a mangnani.(From Wikipedia)

Heavenly Executioner Chiwoo was published in English by Yen Press from December 7, 2005 to September 30, 2008.