The former legendary assassin Zach retires to live a peaceful life as a countryside priest until a familiar face returns to seek his guidance. Now he must work from the shadows once again...unless his former student can drag him into the light first!

Beryl Gardenant is just a humble old man who runs a swordsmanship dojo in a backwater village. Out of the blue, his peaceful country life is upended when a famous former pupil recruits him as a special instructor for the nation’s elite knights!