The rain arrived in Yunhe without courtesy.
It did not fall little by little or warn the city with wind. It simply opened the sky in the middle of the afternoon, turning streets into broken mirrors and shop awnings into drums of water. Lin Xuan was leaving a pharmacy near the hospital when the downpour trapped him beneath the eaves of a closed shop. In his hand was a new notebook. It was neither elegant nor expensive. He had bought it because the old one was filled with surgical notes, Doctor Sun's sentences, and clumsy anatomy sketches only he could understand.
Beside him, a boy in school uniform hugged his backpack to his chest and stared at the rain in despair.
"Are you late?" Lin Xuan asked.
The boy looked at him cautiously.
"For tutoring. My mom says if I fail math, I will end up selling sweet potatoes."
"Selling sweet potatoes is not a disaster."
"My mom sells them. That is why she says I should study."
Lin Xuan did not know how to answer. The city always found simple ways to remind him that effort was not an abstract virtue. Sometimes it was a mother under the rain, pushing a hot cart so her son would not have to.
A cry came from the corner.
It was not the cry of a spectacular accident, but one of those sounds that turn heads before the mind understands. An elderly man had slipped beside the fruit stall, and the woman selling chestnuts was trying to lift him without knowing whether she should move him. Several people approached while keeping their distance, that useless circle that forms around public misfortune.
Lin Xuan crossed through the rain before thinking.
The man was conscious, but pale. His right hand pressed against his chest and his breathing was short. The fall might be consequence, not cause. Lin Xuan crouched, spoke clearly, asked someone to call emergency services, and told someone else to get an umbrella to cover the patient. He wore no coat. No visible badge. He was only a soaked young man with a pharmacy bag.
"I am a doctor," he said when a woman tried to push him away. "Do not move him yet."
He took the radial pulse. Weak, irregular. Then the carotid. He watched the lips, the sweat, the way the man avoided a deep breath.
[Initial reading: irregular pulse.]
[Compatibility: acute cardiac event / significant arrhythmia.]
[Recommendation: urgent transport and monitoring.]
But beneath that notice came another sensation, subtler. It was not a line of text. It was as if his fingers were listening to broken music inside the artery: pauses, premature beats, a rhythm that had not yet decided to fall apart.
The Pulse Reading of the Nine Heavens did not manifest as a miracle. It manifested as attention.
"Chest pain?" he asked.
The old man barely nodded.
"Like... a stone."
"Since when?"
"Before I fell."
The hospital ambulance was only a few streets away and arrived quickly. When the paramedics recognized Lin Xuan, their attitude changed. They no longer looked at him as a meddling passerby, but as someone who could provide useful information. He summarized with precision: pain onset before fall, irregular pulse, possible cardiac event, avoid rough movement, urgent monitoring.
The boy in uniform still stood under the eaves, watching him with wide eyes.
"Do you save people in the street too?" he asked when the ambulance left.
Lin Xuan was soaked to the skin. The corner of his new notebook had gotten wet.
"I try wherever it is needed."
"My mom says doctors are rich."
Lin Xuan gave a tired laugh.
"Your mother has met very few young doctors."
The boy seemed to think about that, then offered him a crumpled tissue.
"For your glasses."
Lin Xuan accepted the tissue as if it were valuable.
That scene, which anyone else might have forgotten within an hour, stayed with him throughout the shift. The old man was admitted to cardiology, stable because he had arrived in time. No ceremony followed. There was no applause for a doctor kneeling in the rain. Only a note in a chart, an electrocardiogram, an occupied bed.
Yet by late afternoon, the system appeared while Lin Xuan dried his hair with a borrowed towel.
[Advancement condition met.]
[Realm of the Inner Pulse stabilized.]
[Technique: Pulse Reading of the Nine Heavens - initial stage consolidated.]
There was no golden light. No trembling world. Only a new clarity in his fingers, as if people's arteries had begun speaking a language he was only starting to understand.
Zhao Linger found him in the rest room, shoes still damp.
"Did you get yourself into trouble again?"
"The rain got into me first."
She placed a cup of hot ginger tea in front of him.
"Drink. You look like an ambitious corpse."
"That is very specific."
"I work in a hospital. I see many kinds of corpses."
Lin Xuan took the cup. The heat burned his tongue, but he did not complain.
"Thank you."
Zhao Linger sat across from him without asking permission.
"People are talking. Not only about your cases. They say you changed. That before you looked like a tired doctor, and now you look like someone listening to something others cannot hear."
Lin Xuan felt his hand tighten around the cup.
"And what do you think?"
She looked at him with an honesty more uncomfortable than suspicion.
"I think you are carrying something alone. And if you keep going like this, one day you will save someone and then collapse yourself."
The system did not react. Perhaps because it was not a threat. It was true.
"I do not have the right to collapse yet," he said.
Zhao Linger sighed.
"That is not a healthy answer."
"I did not say it was."
Outside, rain struck the hospital windows. Inside, white lights stayed on. Lin Xuan looked at his own fingers. They were ordinary fingers, with small pen marks and a red line where a glove had pressed too tightly. Yet for the first time, he felt there was a door inside them.
Not toward easy power. Not toward miracles.
Toward listening.
And perhaps, before becoming the best surgeon in the world, he had to learn that: every incision began long before the scalpel, at the moment when a body revealed its fear through an irregular pulse beneath the rain.