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The Stud Horse Calculus

Summary:

In the quiet sanctuary of the clinic, twelve-year-old Maomao is forced to confront the irregular variables of her own ancestry when her father, Luomen, reveals the truth about the Supreme Military Strategist, Master Lakan. As Luomen gently explains Lakan’s profound face blindness—and the heavy secret that Maomao’s diseased mother, Fengxian, still draws breath in the shadows of the district—Maomao flatly rejects the noble lineage entirely, brutally labeling her biological father as nothing more than a "stud horse" who provided mere genetic material. Yet, beneath her fierce and clinical defense of Luomen’s true fatherhood, the interaction exposes a deeper, ironic mathematical truth. In her absolute, unblinking pragmatism, her obsessive need to categorize human relationships into strict calculations, and her utter inability to see her own deep-seated trauma as anything but raw metrics, Maomao demonstrates that she is far more La Clan than she ever wants to accept. She shares the exact same hyper-focused, structurally severe brain as the eccentric strategist she is so desperately trying to balance out of her ledger.

Notes:

Just a little preview of why the La clan aggravates her so, so much...

Work Text:

The clinic air was thick with the comforting, slightly bitter scent of drying licorice root and roasted ginger. Twelve-year-old Maomao sat on a low wooden stool, her small, scarred fingers sorting dried cicada slough into neat, identical piles of ten. Her mind fired with the perfect, quiet satisfaction of a well-balanced shelf.

Across the worktable, her father Luomen was carefully slicing a thick root of ginseng. He looked unusually restless. His gentle, weathered hands—usually as steady as a surgeon’s iron needle—kept shifting the cutting board, his brow furrowing as he glanced at the flat, unblinking wall of Maomao’s clay-powdered face.

"Maomao," Luomen began softly, his voice carrying that familiar, gentle resonance that always made her shoulders relax. "A relative came by the clinic today. I think it is finally time we talk about him."

Maomao didn't look up from her cicada shells. "If it is about the Verdigris House ledger, I have already calculated that my current pharmaceutical compounding speed will clear the mahogany damage debt by my twentieth winter."

"No, it is not about the debt," Luomen sighed, setting his bone knife down with a soft thud. He leaned forward, his kind eyes completely serious. "It is about the Military Strategist. Master Lakan."

Maomao’s hand froze mid-air, a cicada shell pinned between her thumb and forefinger. Her jaw tightened, a cold, prickling alarm flaring beneath her skin. The uniform, her inner ledger automatically computed, her mind flashing back to the frantic panic loop of her childhood. The intense, wide, searching gaze. The predator who stalks the Pleasure District because he wants a younger, miniature model of my mother.

"The imperial official," Maomao said, her voice dropping into its flattest, most monotone drone. "The predator with such an unusual focus on me. He should be avoided. At all costs."

Luomen let out a long, weary breath, rubbing the bridge of his nose. "Maomao, please, he is not a predator. Not in the way you think."

"He stares at a thirteen-year-old child because she shares the anatomical features of a diseased courtesan," Maomao countered, her eyes narrowing with a sharp, venomous pragmatism. "That represents a severe biological deviancy. Under the current Emperor’s regime, such tendencies are common amongst the high officials, but that does not mean I will accommodate his whimsy. If he comes near the clinic, I will mix aconite into his morning tea."

"Maomao, please do not poison the Military Strategist," Luomen pleaded, a faint, helpless smile touching his lips. "Listen to me. Master Lakan is... he is your biological father."

Maomao blinked once. Twice. Her analytical gears ground together for a fraction of a second, processed the information, and instantly rejected its emotional utility. "A blood relationship is merely an anatomical coincidence. It carries zero value. And it does not disprove my assessment of his predatory habits."

"It does, because he has a condition that changes how he sees people," Luomen explained, his tone patient and gentle. "Lakan suffers from complete face blindness. To his eyes, every human face looks completely identical—like a blank, featureless slate, or a generic mask. He cannot recognize his own soldiers, his own servants, or even the Emperor. He has to identify people entirely through chess pieces. But when he looks at you, or when he looked at your mother Fengxian, his brain can actually process the unique dimensions of your features. You are the only living things whose faces he can actually see."

Maomao remained entirely still, her mind rapidly re-computing five to six years of survival data. She recalled the intense, frantic weight of Lakan’s stare in the marketplace. He hadn't been grooming a child asset. He had been an eccentric, neurologically broken man frantically trying to find the only recognizable face in a crowded city of featureless chess pieces.

"So... his behavior is not driven by a predatory urge toward children," Maomao muttered, her voice a flat, unimpressed anchor as the panic loop in her skull finally dissolved into a cold, clinical understanding. "It is simply that his visual receptors are poorly engineered. He is a mechanical anomaly."

"He is remarkably weird, and his manners are utterly disastrous," Luomen added with a small nod. "But he does not possess those vile tendencies. He has spent years searching for you, Maomao. He truly thinks your mother is dead, and he wants to be a father to you."

Maomao’s eyes flicked to Luomen's face, catching the heavy, quiet gravity in his expression. She knew the secret truth. Fengxian was not dead. She was terribly diseased, a heavily physically compromised ghost secluded away in the absolute furthest corners of the outer brothels, rotting from the inside. But Luomen had honored the fierce, absolute wishes of Maomao and the Big Sisters at the Verdigris House. He had taken a sacred vow of professional secrecy, ensuring that neither Lakan nor the surface authorities would ever learn the woman still drew breath. To let Lakan know would be to introduce an unpredictable, destructive high-court variable into a fragile, hidden equation. Fengxian was an inventory asset that had already been destroyed by the district; she belonged strictly to the shadows now.

Maomao pulled her hand back slightly, adjusting her wide sleeves with a sharp, dismissive flick of her wrist. She looked directly into Luomen’s kind, weathered face—the face of the castrated doctor who had fed her, taught her, and protected her without ever demanding a transactional return.

"The position is already occupied," Maomao said, her voice dropping into an absolute, unyielding monotone.

Luomen blinked. "Maomao?"

"You are my dad," Maomao stated, her face a completely flat, unblinking wall of clay dust. She pointed a small, green-stained finger toward the outer city gates where the military barracks lay. "He is just a stud horse."

Luomen’s jaw dropped. He stared at his thirteen-year-old adopted daughter, his face turning an absolute, horrified crimson as he choked on his own breath. "A... a what?!"

"A stud horse," Maomao repeated, her tone entirely matter-of-fact, as if she were detailing the reproductive cycle of a river carp. "His biological function was strictly limited to providing the material necessary to initiate my initial development. He was a random breeding variable that crossed paths with the Verdigris House inventory thirteen years ago. He carries no administrative authority over my ledger, and he has no structural place in this clinic. You did the labor of keeping the asset alive. The math is simple."

Luomen sat frozen for a long, agonizing moment, his hands hovering over his ginseng root as he tried to process the utterly severe, terrifyingly pragmatic logic of his daughter’s mind. He wanted to scold her for using such colorful, cynical language to describe the Supreme Military Strategist of the Empire, but as he looked at her stubborn, unblinking eyes, a profound, watery warmth bloomed behind his ribs. Such a La clan brain in a child that absolutely denies being a child of the eccentric clan.

He let out a soft, defeated laugh, shaking his head as he picked his bone knife back up. "You are an extraordinarily difficult child, Maomao."

"I am a highly efficient apprentice," Maomao drone-replied, her fingers immediately returning to the cicada slough, neatly stacking the eleventh pile of ten.

Deep, deep down—locked behind her thickest walls of numbers—the stone in her chest felt remarkably light. She didn't care about Lakan’s chess pieces, and she didn't care about his high-born lineage. Let him search for ghosts. The military official was just a broken machine on the surface. Down here, her parameters were clear: her true dad was sitting across the table, and her family was safe in the dark, entirely content with their calculus.

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