Codename: Shadow

He is the top secret walker codenamed "Shadow". He is as cold as frost and decisive in killing. He is the sharpest knife in the hands of the organization. A mission to eliminate evil spirits accidentally revealed the truth of an old murder case - the real culprit of his parents' tragic death was inextricably linked to the "extraterrestrial object". The sharp blade in the past has become the target of being hunted; the cold defense has cracks due to the departure of his sister. Caught between revenge and redemption, Shadow stands with a sword in hand, splitting a ray of light of his own in the darkness.