Eiden saw them.
His eyes found Raizen first - a casual sweep of the crowd that locked onto a familiar face the way a compass locks onto north. The sweep continued past Raizen to Saffi, acknowledged both of them, and returned to Raizen with the warm, unhurried recognition of a professor spotting students at an event he hadn't expected them to attend.
He changed direction. Angled toward them through the crowd, his pace easy, his posture relaxed, just like a man enjoying a festival. His right hand stayed in his pocket. The left one rose in a small wave.
"Raizen! Saffi!" His voice carried the festival's warmth, bright and open and completely at ease. "I was hoping I'd run into you two."
Something shifted inside Raizen's chest.
Not the seed. Not the empty pocket. Something that has been asleep for a long time. A place constructed in silence, in a room made of blinding lights and things made to make you fall, by a woman with a snowflake Chasmis eye who had looked at him and decided to sharpen instead of blunt him.
The Rust Room didn't only teach you combat. Yes, that was a big part. But Kenzo's words echoed through his mind. "Teach them how not to die" to which Kori answered "That's a popular course"
They only got the basic assassin training at the Rust Room. It still had tons more to offer and make you fail with, but time was tight, and they needed to be ready until the Academy's entrance exam. The Rust Room taught them how to build a version of yourself that could walk through a conversation the way a blade walks through paper - without resistance, without sound, leaving the other person holding two pieces of something they thought was whole.
Raizen smiled.
The smile arrived on his face with the speed and precision of a tool being selected from a rack. Not his usual smile - not the warm, slightly awkward expression that appeared when something genuinely surprised him. This one was constructed. Measured. Warm in exactly the right places, sheepish in exactly the right proportions.
"Professor Eiden!" Raizen shouted. His voice matched the smile - light, slightly flustered, but the voice wasn't his real one. "We were just - we've been walking around the festival. I didn't see you until now!"
The shift was internal and total. Behind the smile, behind the flustered tone, behind the manufactured sheepishness, a different mind was operating. Cold, clear, running calculations that the surface personality would never acknowledge. Eiden was here. Eiden was talking to them. Eiden had been in the Echelon chamber when the staff erupted and the lightning climbed through the ceiling. Eiden had watched the column pour into the sky from a hole in the glass. Eiden had looked at his own dark hand afterward and talked to Maren with an apologetic voice that Raizen had heard from above.
What did Eiden know? What did he suspect? What was he fishing for right now, behind the warm voice, the friendly wave and the casual posture of a man enjoying the evening?
Everything Raizen said in the next two minutes would either confirm or deny whatever theory was assembling itself behind Eiden's calm, intelligent eyes.
"The festival is quite wonderful, isn't it?" Eiden said, falling into step beside them as if he'd been invited. His eyes swept the stalls, the lanterns, the crowds looking upward at the hole in the sky. "I missed most of the day, unfortunately. The Echelon had an... Eventful morning."
A test. The word eventful sank in with carefully calibrated weight - heavy enough to invite a reaction, light enough to pass as casual conversation if no reaction came. Raizen registered the test, catalogued it, and responded with the exact reaction that a student who'd spent the day at a festival would produce: mild curiosity, politely restrained.
"Oh? What happened?"
"Nothing worth ruining a festival evening over." Eiden waved the question away with a gesture that was, itself, a second test - watching whether Raizen accepted the deflection or pressed for details. A person with something to hide would accept too quickly. A person with nothing to hide would show normal curiosity.
"That sounds weird" Raizen said, with a half-laugh that contained precisely enough concern to seem genuine and precisely enough disinterest to seem uninvested. "Should we be worried?"
"Not at all. The Echelon handled it. After all, that's why I am here." Eiden smiled. The smile was good - practiced, professional, the expression of a man who managed information for a living. But Raizen was managing information too, and his architecture was running faster. "So - what did you two do today? I noticed you weren't at the house this morning."
The question was direct. Friendly. And loaded with exactly one piece of information that Raizen needed to process: Eiden had checked the house this morning. Had noticed their absence. Had filed it.
Raizen's internal architecture produced a story in less than a second. Not a lie - lies had seams, and seams could be found. A narrative. A version of events that was close enough to truth to survive scrutiny and far enough from it to deflect from what mattered.
"We wanted to see the festival stalls before they got crowded," Raizen said. He let a small, self-conscious pause sit before the next part, the kind of pause that a teenage boy produces when he's about to admit something that embarrasses him. "Saffi wanted to go early, and I... sort of tagged along, y'know?"
He lifted his arm and draped it around Saffi's shoulders.
The gesture was casual, easy. It was also entirely fabricated - Raizen had never put his arm around Saffi's shoulders, had never had reason to, and the act of doing it now was a performance designed to achieve a specific effect: make Eiden see two students on a date rather than two operatives returning from a mission.
Saffi's reaction was immediate, involuntary and exactly what Raizen wanted.
Her body went rigid. Her cheeks, which had been carrying their usual slight colour, detonated into a shade of red that started at her jawline and climbed to her forehead in under a second. Her mouth opened, produced no sound, and closed. Her hands, which had been at her sides, flew to the hem of her dress and gripped the fabric with the white knuckles.
She didn't push his arm off. That was the part that would sell it - the part that Raizen had counted on, the part that his architecture had predicted based on a hundred small observations accumulated over days of being close. Saffi wouldn't reject the contact in front of Eiden because rejecting it would create a scene, and creating a scene would draw attention, and drawing attention was the opposite of what they needed.
And maybe - the part of Raizen that wasn't the architecture, the part that was still the warm-hearted boy from the village, saw this quietly - maybe she didn't push it off for reasons that had nothing to do with operational security.
"We walked around the market this morning," Raizen continued, his arm resting on Saffi's rigid shoulders with easy weight. "Looked at stalls… We even found a bracelet Saffi liked." He nodded toward her wrist, where the bracelet with its stones caught the lantern light. Real detail. Verifiable. The best fabrications were built on foundations of truth. "Then we watched the sky for a while - the hole, you know. Pretty incredible what you all did!"
He delivered the word hole without emphasis, without loaded significance, without any indication that he knew exactly what had created it. Just a festival-goer commenting on the main attraction.
"It, uh… It deffinetly is something…" Eiden agreed. His eyes had moved from Raizen to Saffi, and then to the arm on Saffi's shoulders, and then to Saffi's face, which was producing enough heat to warm a small room. He read the scene the way any adult would read it - two teenagers, one arm, one blush, one bracelet, one festival. The story wrote itself, and Eiden accepted it.
"Well," Eiden said, and the warmth in his voice gained a teasing edge that sounded genuine, "I won't keep you two from your evening. Enjoy the festival. The sky lantern release is at midnight - you won't want to miss it."
He nodded to both of them, turned slightly, as if to leave.
Then stopped.
He looked back. Over his shoulder, his face half-lit by the lanterns, half-shadowed by the festival crowd. The warmth in his expression was still there, but something had shifted beneath it - something harder, something that lived in the same place where Raizen's architecture lived, and recognized its own kind.
Eiden's mouth curved.
The smile was different from any Raizen had seen on his face before. Not warm. Not professional.
Raizen had seen this smile before. The chess-master's respectful acknowledgment.
"By the way" Eiden said. "Nice try"
The words were quiet,almost conversational. Delivered at a volume that the festival noise would have swallowed for anyone standing more than two meters away.
Then, softer:
"...Last night."
He held Raizen's eyes for one second. Two. The smile didn't waver. The festival swirled around them - music, laughter, the amber light of paper lanterns and the fading purple of a sunset pouring through a permanent hole in the sky.
Then Eiden turned and walked into the crowd, and the festival closed behind him like water closing behind a stone, and he was gone.
Raizen's arm slid off Saffi's shoulders.
His face hadn't changed. The manufactured smile was still in place, the sheepish posture still holding, every element of the performance still running on the surface while the mind beneath it recalculated everything it thought it knew about the distance between knowing and proving.
Eiden knew.
