Extra Chapter 21

is the 21st extra chapter of the manga, Nanatsu no Taizai.

Characters in Order of Appearance

 * Bartra Liones
 * Elizabeth Liones
 * Gilthunder
 * Margaret Liones
 * Griamore
 * Veronica Liones
 * Slader
 * Hendrickson
 * Hawk
 * Hawk Mama

Trivia

 * This special chapter serve as a prologue to the movie Prisoners of the Sky.
 * The first 8 pages of this chapter were published in Weekly Shonen Magazine, as a sneak peek of the Prisoners of the Sky special volume.