Star's Cloth Feather's Yarn Eternity

Several hundred years ago, the son of darkness already regained consciousness, shaking heaven and earth, filling the nights with evil, the whole world trembled with nervousness... and in the Western Heaven at the edge of eternity, there's a legend about a six-winged angel who will awaken in a million years and save the world from its crisis. Will the legend really come true?

Volume 3 includes the oneshot story "The Fingertip Country"