Fortunately, a first-year high school female student stumbled upon a murder case one night.
She ran to the police station in horror to report the crime, but found the murderer chatting with his police uncle at the door of the police station.
It's summer vacation and her parents are away.
Unsociable, she is isolated and helpless.
But fortunately, she also has some trump cards... Those are the cheapest things that can be obtained, but are ignored by countless people——
knowledge.
She studied various theories diligently, armed her mind with knowledge, and tried to make biological and chemical weapons and firearms.
On the other side, she started investigating the case.
Two months later, she returned to school and became the murderer's classmate.
In order to survive, she had no choice but to gain favor with criminals and learn criminal psychology.
However, this criminal actually had many topics in common with her, ranging from philosophy to mechanical production.
The more contact she got, the more timid she felt, but at the same time she felt a strange appreciation.
Later, she discovered that there were more and more mysteries, and her deskmate did not seem to be a murderer, and a murder case involved more sinister transactions...
"I will die and you will live. Who is more unfortunate, only God knows."
Mission: Knowledge is power