Special forces soldier Su Che transmigrates during a laboratory explosion and wakes up in an ancient mass grave. On the brink of death, he is forced to take on the identity of a member of the elite assassin organization Bloodshadow Tower, along with a bloodstained token. To find a cure for the deadly poison known as Heartdevourer, he has no choice but to assume the name Shadow Seven and descend into darkness, fighting for survival through hellish training and slaughter.
The whip of his cold-blooded instructor, the blades of rivalry among his fellow trainees, and missions woven through political schemes... Using modern tactical thinking and scientific knowledge, he hones himself into a lethal weapon, yet deep down he cannot suppress his reverence for life. When the organization's filthy secrets come to light, Su Che stains his sword with the blood of his fellow disciples and sparks a shocking rebellion. From then on, he roams the martial world and the halls of power alone, breaking traps with cunning and using killing to stop killing, sworn to sever the web with which Bloodshadow Tower controls the realm.
With bare hands, he stirs up mighty waves; with a single blade, he takes on the powerful. When the master of Bloodshadow Tower emerges from the abyss, their fated showdown erupts atop a peak of flames. Will Su Che become the next shadow, or carve out a dawn of his own? Amid a blood-soaked age of chaos, a lone soul from another world uses his blade as a pen, writing a final song of redemption across a sea of corpses.
