It started with a sound.
Not a scream. Chu Yan did not scream. He had trained himself out of screaming before this body was old enough to understand why.
It was a low, involuntary hum, pressed between clenched teeth, vibrating through his smaller limbs until the walls of his chamber picked it up and amplified it into a faint, troubled pulse.
The palace noticed before anyone else did.
The bioluminescent veins in his room shifted from their resting amber to a cautious pale blue, the hive's instinctive response to distress in an imperial body. The floor beneath him warmed. The membrane at the entrance thickened, sealing him in, as if the palace itself had decided that whatever was happening inside this room was too precious to be witnessed by anything that did not love him.
Chu Yan curled tighter.
His limbs wound around his own core, layered and knotted, pulling inward the way ZERG bodies did when growth surged too fast for the nervous system to process gracefully. It was a natural stage. Every ZERG went through it. The body expanding, the shell softening to allow new density, the neural pathways burning wider to accommodate what was coming.
For low-class ZERG, it happened in clusters, bodies packed together, shared heat dulling the worst of it. Nobody checked on them. They endured, or they didn't.
For imperial ZERG, it was monitored. Attended. Controlled.
For the beloved prince, it was supposed to be gentle.
It was not gentle.
Chu Yan's mind—too aware, too human in its architecture—fought the process. His adult consciousness refused to surrender to something so purely biological, and the resistance turned manageable pain into something sharper, like a wire tightening inside every limb.
He pressed his face against his own coiled body and breathed.
In. Out.
On Earth, he had broken a wrist once, falling off a bicycle at fourteen. The pain had been bright, specific, a single point that his brain could locate and contain.
This was different.
This was everywhere.
His whole body was becoming more of itself, and the transition felt like being rewritten from the inside.
He did not call for anyone.
He never called for anyone.
Chu Yun arrived first anyway.
The eldest brother did not rush. He never rushed. Rushing implied that the situation might be beyond his control, and Chu Yun did not permit situations to be beyond his control.
He entered through the sealed membrane as if it had no right to stop him—and it didn't. The palace recognized him instantly, parting for his authority without hesitation.
The room was dim. Blue-pulsed. Warm.
Chu Yan was a tight knot of limbs in the center of his resting niche, trembling in a rhythm that wasn't voluntary.
Chu Yun stopped.
He assessed.
His gaze moved over Chu Yan's body with the precision of someone who had watched growth stages before and understood them clinically. He noted the shell softening at the joints. The slight swelling where new density was forming. The tremor pattern, which told him the neural expansion was active.
Then he moved.
Not to comfort.
To manage.
He crossed to the chamber's environmental panel—a living membrane studded with chemical receptors—and adjusted the room's temperature by two degrees. Then he altered the humidity. Then he released a mild analgesic compound into the air, something the palace could produce naturally, a scent-based sedative that would ease the nerve-burn without dulling consciousness.
Efficient. Precise. Emotionless.
Except for his hands.
His hands, when he finally approached Chu Yan, were careful in a way that had nothing to do with efficiency.
He placed one palm against Chu Yan's coiled back, fingers spread wide, and held it there.
Not pressing. Not pulling.
Just present.
Chu Yan's trembling eased by a fraction.
Chu Yun sat beside the niche, and he did not leave.
He didn't speak. He didn't need to. His body was a wall between Chu Yan and everything else, and the wall did not move.
Chu Yang arrived twenty minutes later like a detonation.
The membrane barely had time to part before he was through it, scent flaring hot with alarm, limbs already reaching. His eyes were wide. His body language screamed emergency even though he had been told—probably by an attendant, probably in a calm voice he ignored—that the prince was simply going through a growth stage.
"Simply" was not a word Chu Yang's body understood.
"Where is he hurt?" Chu Yang demanded, voice too loud for the room.
Chu Yun didn't look up.
"Lower your voice," he said.
"Where is he—"
"Lower. Your. Voice."
Chu Yang's jaw clamped shut. His limbs coiled and uncoiled with restless fury, searching for something to fight, something to blame, something to fix with force because force was the only language his panic spoke.
He looked at Chu Yan's trembling body and his scent shifted from alarm to something rawer.
Fear.
Not for himself.
For the small creature curled in the niche who was too stubborn to cry.
Chu Yang dropped beside Chu Yun, his larger limbs pressing against the floor as if he could anchor himself through sheer weight. One tentacle reached toward Chu Yan, hovering, wanting to grab, wanting to hold, wanting to squeeze the pain out of him the way he squeezed everything else.
"Don't," Chu Yun said quietly.
Chu Yang froze.
"His shell is soft," Chu Yun continued, gaze still on Chu Yan. "If you grip him now, you'll bruise the new growth."
Chu Yang's tentacle trembled in the air, caught between instinct and instruction.
Then, slowly, painfully, he pulled it back.
He sat there, massive and useless, watching his youngest brother shake.
It was the worst thing he had ever felt.
Chu Yan sensed him. Even through the fog of nerve-burn and biological rewriting, he could feel Chu Yang's heat, his agitation, the way his presence vibrated like a struck bell.
He uncurled one small limb.
Just one.
It reached out, blind, and found Chu Yang's retreated tentacle.
The touch was feather-light.
Chu Yang made a sound.
Not a word. Something lower. Something that came from a place in him that had never learned to be composed.
His tentacle wrapped around Chu Yan's smaller one with excruciating gentleness, as if he were holding something made of glass and breath.
It was the softest thing Chu Yang had ever done.
Chu Yan's trembling steadied, just barely.
Chu Yun watched the contact without comment, but his hand on Chu Yan's back pressed a fraction firmer.
Acknowledged.
Approved.
Chu Ying arrived last.
She came without sound.
The membrane parted for her and she was simply there, as if she had always been in the room and the others had only just noticed.
She did not ask what was wrong.
She did not demand answers.
She looked at Chu Yan's curled body, at Chu Yun's steady hand, at Chu Yang's trembling grip, and she understood everything at once.
Then she lay down.
She stretched her body alongside Chu Yan's niche, true-form fully extended, limbs loose and open. She pressed herself against the niche's edge so that her warmth bled through the living material and into Chu Yan's space.
Not holding him.
Surrounding him.
The way a tide doesn't grab the shore. It just stays.
Her breathing slowed deliberately, settling into a rhythm that was calm and deep and unhurried. Her scent softened, something floral and cool threading through the room's analgesic haze.
Chu Yan's body responded before his mind could.
His coiled limbs loosened by a degree. His breathing, which had been shallow and sharp, began to match hers. Not consciously. Not by choice. By proximity. By the simple biological truth that a ZERG in pain would sync to the steadiest heartbeat in the room.
Chu Ying became the steadiest heartbeat.
She stayed.
Minutes passed. Maybe longer. Time in pain was unreliable.
Chu Yan drifted between awareness and something softer, his mind flickering with fragments: rain on glass, a bicycle, a mother's voice he could no longer hear clearly, and then the present—warmth, pressure, the smell of metal and flowers, three bodies arranged around him like a constellation that refused to let him fall into the dark alone.
At some point, Chu Yang's grip loosened into something that was no longer desperate. His breathing had synced too. His massive body had gone still beside the niche, limbs draped heavy and warm, no longer searching for a fight.
At some point, Chu Yun's hand on Chu Yan's back began to move. Not much. A slow, repetitive stroke, back and forth, that had no medical purpose and every emotional one.
Chu Yan felt it.
He felt all of it.
And he thought, through the haze, through the pain that was finally beginning to ebb as his body accepted its own expansion: I had a family before. But not like this.
On Earth, love had been expressed in words, in gestures kept at arm's length, in the careful distance that humans maintained because touching too much meant needing too much.
Here, love was contact.
Love was a brother who managed your pain before he acknowledged it.
Love was a brother who wanted to crush the world for hurting you and instead learned, in one terrible moment, to be gentle.
Love was a sister who didn't speak, didn't ask, didn't fix. Who simply lay beside you and breathed until your body remembered how.
Chu Yan's eyes burned.
He closed them tighter.
He would not cry.
He would not cry because crying in this body felt too real, too physical, and if he started he wasn't sure it would be about the growth stage at all.
A limb found his face.
Chu Ying's.
It brushed across his cheek, light as air, and then withdrew.
Not wiping tears.
There were no tears.
Just reminding him: I'm here. I know. You don't have to say it.
Chu Yan exhaled.
The pain settled into a dull, heavy ache, the kind that meant the worst was over and the body was beginning to stabilize.
His shell would harden again by morning. His limbs would be slightly longer, slightly stronger. His neural pathways would carry more signal, faster.
He would be more.
But right now, in the dim blue light of a palace that breathed for him, surrounded by three siblings who had each arrived in the only way they knew how, he was just small.
Just held.
Just theirs.
And that, he thought, was the part of this life he had not expected.
Not the power. Not the reforms. Not the empire's adoration.
This.
The weight of being loved by creatures who should not have known tenderness, and who chose it anyway.
Outside the chamber, the palace's veins shifted slowly from cautious blue back to amber.
The hive exhaled.
The beloved prince was safe.
And three siblings stayed until morning, even after the pain had gone, because leaving felt like a betrayal none of them were willing to commit.