Summary
The story follows Jin So-Han, who, despite being an orphan, was taken in by the Crescent Moon Sword Dance Group and raised by them. However, his life takes a dark turn when Poison Demon, one of the Four Great Evils, discovers his unique abilities and kidnaps him. Raised under harsh conditions by the Poison Demon, So-Han becomes a master of poisons and deadly techniques. Years later, he returns to his hometown only to find that the sword dancers who raised him have been defeated by a malevolent sect. Determined to avenge his fallen family, So-Han embarks on a bloody quest to rescue the remaining members of the sword dancers, using his deadly skills against anyone who stands in his way.