A novel in which a man is transformed into a killer.

I don't know if the content is the same

But there are two similar contents:

1."Phantom Soul Requiem "-this one I watched was actually an animated film, which tells the story of a Japanese man, my wife Ling Er, who traveled to Germany (it should be) and met a killer to work, and she showed her killer's potential in her flight, so she was brainwashed by a strange man and transformed into a powerful killer

. Unparalleled freedom "-Mr. Never Die

This is a series of killer novels by Taiwan Province novelist Giddens Ko. It tells the story of a promising athlete Cang Ye who helped the coach as a guarantor to borrow usury. As a result, the coach ran away, and he was unlucky. When he was prepared to be arrested by the underworld to sell his organs, he met a killer, accidentally stimulated his potential, killed him, and contacted his agent to become a killer. (The novels with big knives are all wonderful, you can go and see them.