Jiang Ning was born without knowing what pain was. When he was burned, he would laugh at the warmth of the flames. He could still walk as usual after suffering a fracture, until he met Shen Chuan, a pain medicine expert. He showed up with a notebook recording pain and said he wanted to teach her to read the body's "danger signals." However, during the training, all his nerves were affected by this girl who had no response to pain.
He taught her to distinguish the touch of ice and fire, demonstrated the difference between tingling and swelling, and used instruments to record every subtle physiological fluctuation of hers. Those perceptions that were supposed to coexist with pain gradually became entangled with other emotions - she would lose consciousness when holding the ice pack with her red fingertips for him, her chest would tighten because he was close to others, and she would stare at an empty room while he was on a business trip.
In Shen Chuan's notebook, "Jiang Ning" changed from a case to a concern, and the pain file became a heartbeat record. When he finally confessed, "When I'm worried about you, it hurts here," Jiang Ning stood up on tiptoes and gently pressed his chest: "Shen Chuan, I seem to have learned. When I love you, my heart hurts."
This is a redemption about perception. He collects pain, but ultimately collects her unique heartbeat.
