When I opened the door, there was no strange smell as I had imagined, but a faint fragrance of cold plums hit me in the face.

When I walked into the house, I saw a charcoal basin burning in the room, which was much warmer than the main room.

The house is not big, but it is very tidy. At a glance, there is no extra or messy thing, everything is neat and tidy.

There was a man lying on a 1.5-meter-tall wooden bed, covered with a quilt, with only his head and neck exposed. He was very thin, with pale skin, and sunken eye sockets and cheeks. He looked a little scary, but it was still obvious that the man was very thin.

"This is my son." Professor Liu sat down beside the bed, pulled his son's hand out from under the quilt, and held it tightly, tears rolling down his cheeks. "Three days ago, he was injured in the head during a dangerous mission. He was sent to the hospital and has not woken up since then." Song Yun took two pieces of paper from the cabinet on the side and handed them to Professor Liu.

Professor Liu took it, wiped away his tears, and continued, "My son is very cheerful and loves to laugh and play. Whenever he comes home, the house is filled with laughter and joy. He is also very filial. No matter what delicious food he finds outside, he will bring some back for me and his father."

Song Yun thought about what she had seen and heard from the moment she entered the house until now. There seemed to be no trace of another man's life in this house.

Although she found it strange, Song Yun didn't have the habit of prying into other people's privacy, so she didn't plan to ask. However, Professor Liu spoke up himself, "His father couldn't accept that his beloved and most outstanding son had become like this, and he didn't want to take on the responsibility of caring for a vegetative patient. Not long after the accident, he moved into the dormitory. Later, he found someone else, and we divorced."

Professor Liu spoke in a calm tone, without any resentment or blame, but Song Yun could sense that Professor Liu must have been feeling uneasy inside when he said this.

Song Yun sighed inwardly, but didn't comment on the matter. She said softly, "Let me take his pulse."

Professor Liu quickly stood up and added, "My son's name is Feng Guoqing. He was born on National Day, so I named him Guoqing."

Song Yun nodded and wrote down the name, Feng Guoqing.

After Professor Liu stepped aside, Song Yun sat down beside the bed and took Feng Guoqing's pulse first.

After taking the pulse, some basic examinations were performed.

Professor Liu watched nervously from the side. After Song Yun finished the examination, he hurriedly asked, "How is it?"

Song Yun felt heavy-hearted. Feng Guoqing's condition was worse than she had imagined.

My body's functions have already deteriorated. If I continue like this, I won't be able to hold on for much longer.

"Let me think about it." Song Yun walked to the window, looked through the window at the plum branches swaying gently outside, and pondered the treatment method in her mind.

She had no experience in treating vegetative patients, and neither did her master. In any case, she had never heard her master mention it. The medical books she had read did mention some cases, but the cases in the books were not quite the same as Feng Guoqing's situation, so there was no treatment method to refer to.

After thinking for a while, Song Yun decided to give it a try and see the reaction.

Song Yun turned back to the bedside and said to the anxious Professor Liu, "I'll give him a try first to see how he reacts."

Professor Liu didn't understand and just nodded. "Okay, what should I do?"

Song Yun shook her head. "No, just watch."

Ziyi came over, opened the medicine box he was carrying, and took out the needle bag.