Anime "Black Cat" plot

Catherine, a lonely girl, is rebellious by nature and hates bondage. She will fight to the death for unreasonable infringement, regardless of the consequences, and her resistance is extremely amazing. To this end, she was sentenced to death for killing a policeman. The CIA agent training section took a fancy to Catherine's willpower and explosive power, and specially transformed her into a high-tech new human being, code-named "Black Cat". Catherine had no choice but to accept the death penalty or reform. Since then, a microcomputer has been implanted in her brain, which can stimulate her brain to sag and secrete, so that her potential can be fully exerted. The CIA can control Catherine through this pc, giving her a splitting headache at any time. Under the heavily guarded imprisonment and inhuman training, Catherine, who thought she was unyielding, almost collapsed. Death tests again and again, success made her have no emotional trust in anyone, including Brain, who painstakingly cultivated her trainer. After the training, Catherine was sent to Hong Kong to work as a photographer for the magazine gods, and secretly asked the CIA to assign tasks at any time. She met Allen, the scientific director of Mai Po Bird Sanctuary, and gave her a new understanding of normal life. Sunshine and love made Catherine feel the joy of life. Just then, she suddenly received a murder order from the CIA, and Brain reappeared with the shadow of death. Catherine's rebellious nature, which had been suppressed for a long time, made her unwilling to be controlled by others all her life and decided to elope with Allen.