In 2088, the "Twilight Virus" broke out and the wasteland descended.
Zhou Ye knew that his daughter was still alive - but he hadn't seen her face in twelve years.
In order to find her, he made deals with the dark forces in the wasteland: assassination missions in exchange for vague clues. He had blood on his hands and was known as a "cold-blooded killer", but he didn't care. As long as I can find my daughter, everything is worth it.
At the same time, in the wasteland, an assassin's alliance called "Netherworld" quietly emerged. The leader's code name is "Zero". No one has seen her true face. They only know that her mental powers are enough to erase people's consciousness while they are awake. Nether has received countless orders and has never failed, but no one has ever known that this legendary killer organization was actually founded by a girl in her early twenties.
Two lines, each extending on the wasteland.
A man walks alone in the dark night, carrying guilt and obsession.
Ichijo rises from the shadows, cold and powerful.
What they don't know is that fate has already drawn cross lines in the dark.
**When the "killer father" finally found his daughter, what awaited him was an answer he had never imagined. **
