This is a world where "Yanke" is the main body
Yanke is the highest-level assassin in the existing world. He is as sharp and alert as a wild goose, values friendship, and is kind (only to his own companions). He also has wisdom that other members of the assassin organization cannot match. No matter how old or young you are, you can join the Yanke Organization according to your abilities.
From ancient times to the present, all travelers have strictly followed one rule——
"Don't miss old friends, don't think about the past, live in the dark night, wander on the tip of a knife, look back at the waning moon, and fall into the wilderness."
Intention: Not well thought out (fuck)