Chapter Text
The rules of the Cloud Recesses were carved into the precipice of the mountain, three thousand rules designed to tether the human soul to an unyielding ideal of righteousness. To Jiang Yanxuan, those stone inscriptions felt less like a code of virtue and more like the iron bars of a cage.
Unlike her twin sister, Jiang Yanli, who moved through life with the quiet grace of a traditional lady, finding her purpose in the domestic warmth of the kitchens and the gentle mending of robes, Yanxuan was a creature born of the training grounds. She wore the deep purple of Yunmeng Jiang, her hair bound tight, a sword strapped to her waist. Yet, she was an anomaly within her own home. Where the Jiang style was fierce, swift, and jagged like the purple lightning of Lotus Pier, Yanxuan’s internal spiritual flow was different. When she swung her blade, the energy within her golden core did not strike like a hammer; it vibrated. It rippled. It sought a rhythm that the physical forms of her sect simply could not provide.
"You are forcing it, A-Xuan," Wei Wuxian had told her once, years ago, as they sat on the docks of Lotus Pier, their bare feet dangling into the cool water while they peeled lotus pods. "You’re trying to make your spirit bark when it wants to sing. Why not let it sing?"
Now, thousands of miles from the lakes of Yunmeng, the disciples of the great sects had gathered in Gusu for the guest lectures. While Wei Wuxian spent his afternoons testing the limits of Lan Wangji’s legendary patience and Jiang Cheng sat stiffly under the burning gaze of Lan Qiren, Yanxuan found herself drifting toward the back hills.
It was there, beneath the shadow of the ancient pines where the mountain mist hung thickest, that she heard it: the low, melancholic call of a xiao.
The melody was Liebing. It did not possess the sharp, disciplinary edge of the guqin scores the Lan Clan used to suppress fierce corpses; instead, it was a song of quiet contemplation, flowing like groundwater through stone.
Yanxuan stopped, her hand instinctively resting on the pommel of her sword. Closed eyes allowed her to perceive the sound not merely through her ears, but through her skin. The acoustic vibrations brushed against her spiritual veins, matching the erratic pulse of her own core, slowing it down, anchoring it.
The music ceased.
"The wind in Gusu carries many voices, Jiang Er-guniang, but few listen to them with such intensity," a voice spoke from the mist.
Lan Xichen stepped forward, his white cultivation robes unblemished, the silver crest on his forehead ribbon capturing the faint mountain light like a beacon of his lineage. He held Liebing loosely in his slender fingers, his expression a portrait of the effortless, gentle courtesy for which Zewu-Jun was renowned throughout the mortal realm.
Yanxuan immediately brought her hands together, offering a formal bow. "Zewu-Jun. Forgive my intrusion. I did not mean to disrupt your practice."
"There is no disruption," Lan Xichen replied, stepping closer, his dark eyes observing the subtle tension in her shoulders and the way her fingers still lingered near her weapon. "Forgive my presumption, but I have noticed you on the training fields during the morning drills. You possess the agility of your sect, yet your blade looks... heavy in your hands, as if you are fighting your own strength." Yanxuan let out a small, self-deprecating sigh, the stiffness leaving her posture. "My mother says my style is a poor imitation of the Jiang line. I cannot seem to master the sudden, explosive bursts of spiritual energy required for our forms. When I attempt them, the energy scatters. It shakes."
Lan Xichen hummed softly, a sound that seemed to carry the same frequency as his flute. "Spiritual energy is not a monologue, Jiang Er-guniang; it is a dialogue between the soul and the world. If your core wishes to shake, perhaps you should not command it to stand still. Have you ever considered that what you call 'scattering' is actually resonance?"
He gestured toward a flat stone bench beneath a weeping willow. "The Gusu Lan Clan is famed for its musical cultivation, but music is merely the manipulation of vibration through an instrument. A sword, too, can be an instrument, if the smith understands the song it is meant to play."
From beneath his wide sleeve, Xichen produced a slender, hand-copied manuscript—not the guarded, sacred techniques of the Lan sect's lethal chord-strikes, but foundational texts on the relationship between acoustics, air resistance, and the human meridians.
"Take this," he said gently, placing the parchment into her hands. "Look upon it not as a set of rules to replace your Yunmeng heritage, but as a lens through which to view your own unique gifts."
As Yanxuan took the manuscript, her fingers brushed against his. In that brief, fleeting contact, she felt the steady, magnificent pulse of his golden core—clear, perfect, and utterly devoid of doubt. He was the First Jade of Gusu, an untouchable pillar of light.
"Thank you, Zewu-Jun," she murmured, her heart quickening slightly.
"We are all seekers on this path, Jiang Yanxuan," he replied, using her familiar name with a natural warmth that made the cold mountain air feel suddenly, beautifully bearable.
Long before the world burned, before the sky ran red with the fires of Nightless City, there was only the low hum of a flute, the rustle of ancient papers, and the quiet, intellectual friendship of two souls who had found a common language in the silence.