On a snowy day, a girl appears on the back of a dragon. Marco, a lowly member of the Jarin, an organization that controls society behind the scenes, lives an ordinary life as an underling. One day, a dragon falls from the sky. The dragon was carrying Atwight, an important political figure. Marco's encounter with the girl changes everything. The latest work by Naoshi Shinkawa, the author of Your Lie In April and Good-bye, My Cramer! A gangster fantasy, now begins...!

(Source: Magapoke, translated)