Prologue:

1965, London, United Kingdom.

"Jack The Ripper is Back!"

During an era where The Feminist Movement had struggled to extend the rights of voting and equal pay to women, an era in which debates about their right to abort had risen to the surface.

In a time where The Pill was introduced to the world and women began to decide if they wanted to choose a career life, motherhood, or both.

In the midst of all of these dynamic changes in the lives of women; A serial killer was on the loose, threatening their lives by copying the horrifying deeds of the country's most famous serial killer.

When the letter "I am back" reached the police department, they didn't know the meaning behind it and ruled it as a prank letter and a hoax.

Until the first victim got discovered. Killed in the same manner as Jack The Ripper's victims. Now the police department had no doubt about the meaning, an age of terror was suddenly upon them.

After three victims and three weeks of being unable to find and arrest the culprit, Scotland Yard sent for Famous Private Investigator Park JiMin in order for him to help them solve the case.

JiMin discovered that all of the victims were members of the Feminist Movement called Bulletproof Army recently gaining attention from the media.

Knowing this fact and fearing for her members' safety, this movement's leader sought help and protection from the top six skilled government spies. Naming them: The Bulletproof Guardians.