The castle was enormous. Sylva had never imagined a place this large could exist, let alone be meant for people to actually live inside.
Stone hallways stretched endlessly in every direction. High ceilings were strung with crimson and gold banners. Servants moved through the corridors at a pace that suggested everyone here always knew exactly where they were going. Sylva walked close to the wall and tried to be invisible.
It didn't work.
She heard the whispers as she passed. Is that the girl the prince brought back? I can barely sense any flux from her. Strange. She lowered her head and walked faster, which she knew even as she did it was exactly what she had always done and had never helped.
Eventually the hallway opened into a wide training yard.
She stopped.
Knights sparred across the space, blades ringing. Near a circle carved into the stone floor, a group of mages practiced flux shaping — not the fumbling half-formed exercises she'd glimpsed at the orphanage, but something deliberate and precise. One of them stepped into the circle and began to chant, voice steady, arms rising. A magic circle flared to life beneath his feet. Flux flowed toward it. A column of fire erupted from his palm, clean and controlled, then extinguished on command.
Sylva stared.
"You've never seen real spellcasting before."
She startled. Kaelen stood a few steps behind her, arms crossed, watching the yard.
"…Sorry."
"You apologize too much," he said, not unkindly. He stepped up beside her. For a moment neither of them spoke. Then: "In Eldenheim, every knight learns flux shaping. Not just battle magic — control. Precision. The ability to move flux the way you'd move a limb." He glanced at her. "You should understand something about this place."
Sylva tensed.
"People here value strength above almost everything else. It's not cruelty — it's just what this kingdom is built on. Fire and discipline and the kind of standards that don't make exceptions." His voice was even. "Right now, you have none of what they value."
"I know," Sylva said.
"Then why are you still here?"
The question wasn't cruel. It sounded almost genuine — like he was asking something he actually wanted answered.
Sylva didn't know what to say. She had nowhere else to go. But that wasn't the same as a reason, and she suspected Kaelen understood the difference.
He seemed to reach some conclusion of his own. "You haven't spoken to Nasu since yesterday."
"…No."
"He's probably in the west garden. He goes there when he wants quiet." A pause. "I'm not telling you to go. I'm just telling you where he is."
Sylva looked at him for a moment.
Then she went.
―――
The west garden was nothing like the rest of the castle.
The stone gave way to open grass, wide and soft, ringed by tall trees that filtered the light into something gentler. A small fountain stood at the center, the sound of it carrying easily in the quiet. It felt like the castle had briefly forgotten itself here and become something else.
Nasu was lying on the ground near the fountain, hands folded behind his head, staring up at the sky.
Sylva approached slowly. "…Prince Nasu."
He glanced over. "Oh. You're still here."
She stopped. "…Should I not be?"
"I figured you might run again."
"…That was different."
"How?"
She didn't answer. He sat up slightly, studying her in the quiet way he had — not intrusive, just present.
"You can sit," he said.
She sat carefully, a few feet away. The fountain trickled between them. For a while neither of them spoke, and the silence wasn't uncomfortable exactly, but Sylva felt the weight of everything unsaid pressing against her chest.
Finally: "…Why did you save me?"
"What kind of question is that?"
"An honest one."
He thought about it. "You were about to die."
"That's not an answer."
"It is, though."
"You brought me to the castle," she said. "You told your father you wanted to. He looked at you like—" She stopped.
"Like what?"
"Like he was waiting for a better reason."
Nasu was quiet for a moment. "Maybe he was."
"Then why didn't you give him one?"
"Because I didn't have one. I just—" He shrugged. "You were there. You needed help. I helped."
Sylva looked down at the grass. "People don't usually do that."
"Do what?"
"Help. Without wanting something back."
Nasu didn't reply right away. When she glanced up, he was looking at the sky again.
"That sounds exhausting," he said. "Keeping score like that."
"It's just how it works."
"For some people."
Sylva stared at him. Her entire life she had been defined by what she lacked — too little flux, too strange, too much of the wrong kind of nothing. Every person she had ever known had eventually gotten around to reminding her of it, even the ones who meant well. And here was this boy who had saved her life and brought her into his home and apparently hadn't thought about her flux at all.
"…Prince Nasu."
"Yeah."
She stood up.
He looked at her.
And then, before she could talk herself out of it, she dropped to one knee on the grass.
"Sylva—"
"You saved my life," she said. "You brought me somewhere I could live. You stood in front of your father and said I want to and didn't flinch when he pushed back." Her hands tightened against her knees. "No one has ever done any of that. Not for me. Not once."
Her voice was shaking. She hated it.
"I know I have almost no flux. I know I'm probably the weakest person in this entire castle right now. I know I have nothing to offer you."
She pressed her forehead to the ground.
"But I swear — I will train. I will get stronger. I will learn everything I can, and keep learning until there's nothing left to learn. And one day—"
She lifted her head. Her eyes were fierce and bright and she didn't look away.
"One day I will stand beside you. Not behind you. Beside you. And I will make sure nothing gets close enough to touch you."
The garden was very quiet.
Nasu looked at her for a long moment. Something moved behind his eyes — not surprise exactly, but something that hadn't been there before. Then he let out a slow breath, stood up, and walked over to her.
"You know something?"
"What?"
"You're kind of weird."
She blinked. "…What?"
He extended his hand.
"You don't need permission to stay," he said quietly. "You never did."
She looked at his hand. Then, slowly, she took it, and he pulled her to her feet.
"If you want to get stronger, I'll train you. We'll figure it out." He tilted his head. "But don't complain when it hurts."
For the first time in longer than she could remember, Sylva smiled. It felt strange on her face.
"I won't," she said.
And in that quiet garden, with the fountain running and the afternoon light coming soft through the trees, the vow that would shape both their lives was made.
Not a grand declaration. Not a ceremony witnessed by anyone. Just two people standing in the grass, one of them still trying to understand what it felt like to be treated like she mattered.
It would take her a long time to get used to it.