He is a legend in the killer world, codenamed "Zero" - Shen Du. He has an incredible ability: to erase his sense of existence at will, become invisible in the crowd, and disappear in desperate situations. For twenty-eight years, he thought this was his innate talent and his capital that made him superior to the entire dark world.
Until a line of bruised words appeared out of thin air on his wrist - "Famous in the world of killers".
The voice from inside his head told him: You are never alone. The talent you are proud of is nothing more than the electromagnetic pulse released when "I" is imprisoned and struggling deep in the brain. Every time you made a perfect assassination in the past, I was fighting for you. And behind all of your erased childhood, burned training records, and missing master, there is a shocking secret about the "consciousness container."
My name is Shen An, and I am your second personality that has been suppressed in the depths of your subconscious since birth. I am also the true source of all your power. Now, the countdown begins. In three months, our consciousness will be fully integrated. What will be born then?
An existence that goes beyond the definition of "Ace Killer", and a monster that makes the entire world of killers - and even the older mysterious organization behind it, the "Karma Society" - tremble.
