Eighteen-year-old Xia Qingqian entered college with a broken music dream. She thought she would spend four years mediocrely until she met that woman - Lu Mingyin, the youngest female instructor in the school, known as the "Iron Lady".
On the first day, Lu Mingyin cut off her long hair. The next day, she was punished by running three extra laps. On the third day, she was thrown to the fighting ring with an over-the-shoulder throw. Xia Qingqian wrote in her diary: I hate this woman.
But it was this woman who walked five kilometers with her on a rainy night, visited her doctor late at night when she had a high fever, and quietly handed her a work-study application form when her father lost his job. When she discovered that Lu Mingyin's borrowing card had been borrowing the same book for ten years; when she learned that this woman had a comrade in her heart who could never be saved - she began to understand that behind the iron blood was riddled with tenderness.
Twenty-eight-year-old Lu Mingyin used severity to disguise vulnerability and used distance to protect herself. She told herself not to be soft-hearted, until the stubborn girl fell down and got up again and again, until the girl said: "You are no one else, you are the most important person to me."
From the military training ground to the national flag guard, from teachers and students to confidants. They taught each other: true strength is not indestructible armor, but in the softness that dares to show.
This is a story about iron blood and tenderness, about how two women see each other in confrontation and complete the inheritance in protection.