Mu-Sang is on a mission to hunt down and eliminate all known "Gwi" creatures. He is unwavering in his determination, willing to face any obstacle in his path, even the imperial army.
During his travels, Mu-Sang crosses paths with a girl who shares his distinctive, struck-out mark. Was their meeting destiny? And what drives Mu-Sang's deep animosity towards the "Gwi"? These questions remain unanswered.