The Lin family chose a hotpot restaurant near the night market because none of them had the courage to say goodbye. The place was noisy, hot, and honest. Steam covered the windows, children ran between tables, and the owner shouted orders with the energy of a general leading a campaign against hunger.
Lin Xuan came straight from the hospital. His mother had already ordered too much meat. His father had paid before anyone could stop him. Lin Yue raised her chopsticks as if chairing an important meeting.
"Rules for Jiangnan," she announced. "One: no sleeping in chairs. Two: call Mom. Three: do not look at arrogant doctors as if you want to murder them."
"My normal face is not murderous," Lin Xuan said.
"That is debatable," his father replied.
Mei Lan served him vegetables.
"Eat before arguing."
Lin Xuan obeyed. For years he had eaten quickly between shifts, as if food were an interruption. That night he tried to do it slowly. His sister watched him.
"You chew like you're signing informed consent."
"Are you correcting my chewing technique now?"
"If necessary, yes."
Laughter eased the table. For a while they spoke of small things: socks, weather, trains, whether Jiangnan had decent noodles. Nobody mentioned that, if the evaluation went well, the absence might become longer than expected.
After the meal, Lin Zhengguo stepped outside. Lin Xuan followed. The street smelled of charcoal, chili, and old rain. A vendor stirred chestnuts in a black pot.
"When you were a child, you hated hospitals," his father said.
"I don't remember."
"I do. You thought everyone who entered came out changed."
Lin Xuan looked at the market lights.
"You were not wrong."
His father laughed briefly.
"I am proud of you. But pride does not remove fear."
The sentence fell without drama, which made it hurt more.
"I'll come back," Lin Xuan said.
"I know. But children always promise to return, and parents always have to learn to believe them."
Lin Zhengguo took an envelope from his pocket. Lin Xuan shook his head before seeing it fully.
"Dad, I don't need money."
"I didn't say you needed it."
"Then don't—"
"Let me be your father without turning it into an argument."
Lin Xuan took the envelope. He knew the system's Merit Funds could arrive through scholarships, legal payments, and clean rewards. Still, this envelope weighed more. It held work hours, silence, and love disguised as folded bills.
"Use it for something useless," his father said.
"Something useless?"
"Comfortable shoes. A good meal. Something that does not save anyone."
Lin Xuan understood. His father did not want to fund his career. He wanted to remind him he was still human.
When they returned to the table, Lin Yue pointed at them.
"You talked seriously."
"We bought chestnuts," Lin Zhengguo said.
"That answer is suspicious."
"It is a father answer," Mei Lan said. "Even worse."
They walked through the market after dinner. Mei Lan bought ridiculous lucky socks. Lin Yue forced Lin Xuan to try a sticky sweet. His father slipped a new umbrella into his backpack without asking.
The phone rang once. It was the hospital. Lin Xuan answered beside a toy stall, solved a medication question, and hung up. When he looked up, his family watched him with pride and fatigue mixed together.
"Even when you're not there, they look for you," Lin Yue said.
"That is not always good."
"It means you are necessary."
The word weighed on him. He had wanted to be necessary in the operating room, wanted his judgment to matter, wanted nobody to ignore him. But being necessary to many could make him absent to the few who loved him without requiring results.
That night, he placed his father's envelope inside Lin Yue's notebook. He did not count it. He did not mix it with system money. Some things lost value when turned into figures.
Before sleep, a notification appeared.
[Family root recognized as a stabilizing force of the Medical Dao.]
Lin Xuan turned off the light.
"They are not a stabilizing force. They are the reason."
In the next room, Lin Yue laughed at her phone. In the kitchen, his mother washed dishes. In the living room, his father lowered the news volume. Lin Xuan listened to those sounds like vital signs of a life he did not want to sacrifice for the summit.