Lan Yihai.
Before she was five years old, her world was a beautiful place.
After the age of five, her world was filled with darkness.
Countless high-pitched laughter seemed to be mocking her incompetence, and she said to herself; "Lan Yihai, you must live and avenge your family!!"
After special training by the country's elite troops, Lan Yihai's body is much stronger than that of ordinary girls, but she seems to be unable to meet the requirements of an officer.
What the hell is going on?
How will Lan Yihai, full of hatred and clever mind, bring shocks again and again?