Xu Yansu was a medical expert that Shi Lihua brought back from abroad three years ago. It only took her three days to open the old lady's eyes from her coma, and her organs returned to normal. The root cause of the coma was found, too—an extremely rare virus in the old lady's body, one that Xu Yansu had been researching for nearly three years at an institute abroad. She was not completely certain she could cure the old lady, but she could control the spread of the virus, which was why Fu Shinian kept her by his side.
Two years ago, due to an unexpected coma, the same virus was found in Fu Shinian's body, identical in symptoms to the old lady's. After waking up, he was diagnosed, and he didn't show any surprise, just looking at the anxious Xu Yansu, he slowly said:
"I never thought that this virus would be hereditary. Maybe my father also died from it, who knows."
At the time, Xu Yansu just held him tightly, crying her eyes out, and said: