They called it a demonstration, but it felt like a cage match.
Two weeks after the underground meeting, Ryuu stood in a space that shouldn't exist. A pocket dimension, Rias had explained. Created specifically for Rating Games, the semiformal combat exhibitions that devil aristocracy used to settle disputes, test talent, and entertain themselves. The dimensions were enormous: a square kilometer of terrain shaped like a European castle complex, with towers and courtyards and corridors and a central plaza, all of it rendered in exacting detail, all of it disposable.
The invitation had come from someone Ryuu hadn't heard of. Lord Diodora Astaroth, a young devil noble with a reputation for collecting interesting things and an interest in Ryuu that Rias described as "politically inconvenient."
"He wants to see what you can do," Rias had said. "Publicly. In front of witnesses."
"Why?"
"Because public demonstrations create leverage. If your abilities are impressive, he'll claim credit for discovering you. If they're unimpressive, he'll use the failure to argue you're not worth protecting."
"And if I refuse?"
"He files a formal challenge through the Rating Game Commission. By devil law, a challenge from a high-class devil to an unaffiliated entity in a managed territory must be adjudicated. Refusal is interpreted as admission of threat status, which triggers containment protocols."
"Devil law is designed to eliminate options."
"Devil law is designed to ensure control. The same thing, said politely."
So Ryuu stood in the central plaza of a fake castle in a pocket dimension, facing three of Diodora Astaroth's peerage members, while an audience of midranking devil nobles watched from observation galleries that floated above the arena like glass bubbles.
Diodora himself sat in the largest gallery. He was handsome in the practiced, deliberate way of someone who treated beauty as a political tool. His green eyes watched the plaza with the comfortable attention of someone watching a horse race he'd already fixed.
The three opponents stood across the plaza. A Rook, a Knight, and a Bishop. All female. All wearing expressions of detached obedience that made Ryuu's skin crawl. There was something wrong about Diodora's peerage, something structural. The bonds connecting them to their King were too tight, too constrained, lacking the organic quality of Rias's peerage bonds. These were chains dressed as threads.
"Non-lethal combat," the announcer said, his voice carrying through the dimension. "The demonstration concludes when one side is unable to continue. Begin."
The Rook attacked first. She was large, powerful, her demonic energy concentrated into a physical enhancement that made her movements blur at the edges. She closed the distance with a ground-shaking charge that sent cracks radiating through the stone plaza.
Ryuu activated Exchange.
He targeted the property of her momentum's direction. Forward became upward.
The Rook's charge converted from a horizontal movement to a vertical launch. She shot into the air, her body traveling the same speed in the upward direction, and the look on her face as the ground fell away was pure confusion. She rose twenty meters before the Exchange expired and gravity reasserted itself.
Then she fell.
She hit the plaza with an impact that cratered the stone and shook the surrounding towers. The Rook piece in her chest absorbed the damage, her supernatural durability preventing the fall from being lethal, but she lay in the crater with the dazed expression of someone whose worldview had been literally turned upside down.
The cost hit Ryuu's legs. His right knee buckled, the quadricep going dead. He caught himself, redistributed his weight to the left leg, and turned to face the remaining two opponents while half his lower body operated on failing signals.
The Bishop attacked next. Long-range demonic energy, concentrated into bolts of purple-black power that screamed across the plaza. Standard artillery. Powerful, fast, and directional.
Ryuu had studied this. He couldn't block demonic energy with Tier I runes, but he could Exchange its properties.
He targeted the property of the bolts' coherence. Coherent became dispersed.
The concentrated bolts of demonic energy dissolved mid-flight, spreading outward like ink dropped in water, the energy diffusing across a wide area rather than striking a narrow point. The dispersed energy washed over Ryuu as warm air rather than destructive force.
The cost: his hearing went. Complete, instant silence. The world became a pantomime. He could see the Bishop's mouth move, shouting something to the Knight, but the words were shapes without sound.
The Knight was fast. Not Kiba-fast, but fast enough. She came in from the left, a sword of demonic energy held in a two-handed grip, and her trajectory was clean and professional.
Ryuu used Stillness. A tight sphere, just wide enough. The Knight hit the edge and stopped. Her sword hung in the air, the tip three inches from his ribs.
He held the Stillness for five seconds. Then released it, and as the Knight staggered from the sudden return of motion, he activated Negation. He targeted the sharpness of her sword.
The blade became dull. Not physically blunted. The property of sharpness, the quality that allowed an edge to concentrate force along a line and divide material, was removed. The sword was still there, still solid, still moving, but when it struck Ryuu's forearm as he blocked with a desperate motion, it hit like a club rather than a blade. Blunt force. Painful but not lethal.
He went down. The impact jarred his arm from wrist to shoulder, and without hearing, without a functioning right leg, and with a headache that was rapidly approaching critical, he couldn't maintain his balance. He hit the stone of the plaza on his side and rolled.
The Knight raised her dull sword for a follow-up strike.
"Enough."
The word cut through the dimension with an authority that had nothing to do with volume and everything to do with the speaker. Rias Gremory stood at the edge of the plaza, and her presence filled the space like floodwater filling a basin. The red of her hair caught the artificial light of the pocket dimension and turned it to something fiercer, something that carried the weight of a pillar family behind every strand.
"The demonstration is over," she said. "The contestant has shown his capabilities."
"The contestant hasn't been defeated," Diodora called from his gallery. His voice was pleasant, amused, contained. "The rules state the demonstration concludes when one side is unable to continue."
"He's unable to continue. He's lost hearing and partial mobility. Continuing would be cruelty, not evaluation."
"Cruelty is a strong word."
"It's an accurate word."
The tension between the two devil nobles filled the pocket dimension like a change in atmospheric pressure. Ryuu lay on the stone and felt the silence, not just the absence of hearing but the silence of a confrontation happening above him, around him, about him, between two powers that could level this entire pocket dimension without effort.
Diodora yielded. Not gracefully. With the thin smile of someone who had gotten most of what he wanted and would collect the rest later.
The pocket dimension dissolved. Reality reasserted itself. Ryuu found himself lying on the floor of a room in the Kuoh Academy old building, his hearing returning in a rush of sound that was almost painful, his right leg tingling with the pins and needles of returning function.
Rias crouched beside him.
"Three opponents," she said. "You used four runes. Exchange twice, Stillness once, Negation once. Each use cost you a body function. You were effective against all three but compromised after each engagement."
"Report card?"
"A minus. You survived. You adapted. You demonstrated tactical creativity against opponents of higher supernatural rank." She paused. "But you also demonstrated that you can't sustain combat beyond three or four rune activations without becoming functionally disabled."
"I'm aware."
"Diodora noticed too. He'll use that information."
"Use it how?"
"By sharing it. By ensuring that every interested party in the Underworld knows that the human anomaly has a four-rune limit before collapse. That information defines the parameters of any future engagement with you. Any enemy who knows your limit can plan to exceed it."
Ryuu sat up. His body ached in places that didn't usually ache. The stone plaza had done things to his ribs that his ribs were still calculating.
"Then I need to increase the limit," he said.
"Or decrease the cost."
"Can't decrease the cost. It's structural. Built into the system."
"Then you need allies who can cover the gaps. People who fight alongside you, not instead of you. People who extend your operational window by handling the threats you can't address after your runes expire."
She was offering her peerage. Not as owners. As partners. A team built around a human who could rewrite rules for four rounds before becoming a liability, surrounded by beings who could cover the remaining rounds with conventional power.
It was a good plan. A practical plan. The kind of plan that acknowledged limitations and built around them rather than pretending they didn't exist.
"I'll think about it," Ryuu said.
"You always say that."
"I always mean it."
She helped him stand. His right leg held, barely, and his hearing was fully restored, and the headache was fading from blinding to severe.
In the observation galleries above, Diodora Astaroth's pleasant smile had set into something harder, and his green eyes tracked Ryuu's exit from the room with the patient attention of a collector marking a new acquisition.
The games devils played had rules too.
Ryuu was learning them fast.
_____________________
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