"A chihuahua can go anywhere…"

The Techichi Company is a private mercenary firm composed of werewolf operatives from around the world. They join forces with Leto to rescue Ein, who is in danger in Berlin. In exchange for saving his life, the company demands Ein's services as a special agent. Ein and Leto are dispatched to Prague together as "Black File"-level operational partners.

The dazzling Golden City welcomes them once more. However, an unusual atmosphere awaits them there…

(Source: Lezhin, translated)