Special soldier Su Che traveled through a laboratory explosion and woke up in an ancient mass grave. On the verge of death, he was forcibly handed over his identity and blood-stained token by members of the top killer organization "Blood Shadow Studio". In order to escape the deadly poison "Heart-eating", he was forced to take the name of "Shadow Seven" and fall into the darkness, struggling to survive in purgatory-like training and killing.
The whip shadow of the cold-faced instructor, the sharp blades of his colleagues, and the intertwined missions... He relied on modern tactical thinking and scientific knowledge to temper a deadly blade, but he could not hide the reverence for life deep in his soul. When the organization's dirty secrets emerge, Su Che's sword becomes stained with the blood of his fellow sect members, triggering a shocking rebellion. From then on, he traveled alone across the rivers and lakes, using his wits to break situations, killing to stop killings, and vowed to cut off the cobwebs of the Blood Shadow Tower that controlled the world.
He can ride huge waves with his bare hands and fight against strong beams with his single blade. When the owner of the Blood Shadow Tower stepped out of the abyss, the fateful duel exploded on the top of the flames - will he become a new shadow? Or carve out your own dawn? In the bloody chaos, a lonely soul from another world used a blade as a pen to carve a song of salvation on the mountain of corpses and the sea of blood.
