Class B's campsite. Same morning.
The shelter was rudimentary but functional—private points well spent, in Ryuuen Kakeru's estimation. Comfort was not the goal; efficiency was. A dry place to think, to plan, to coordinate the moves that would follow.
Ryuuen sat cross-legged within its shade, his sharp gaze fixed on nothing, his mind working through possibilities and probabilities.
Class A was the problem. More specifically, the man in Class A was the problem.
Conventional approaches would fail against Sakamoto. Ryuuen had learned this through painful experience. The rumor campaign, the careful manipulation, the calculated pressure—all had been neutralized with an efficiency that bordered on humiliating.
To defeat someone like that, you couldn't play by ordinary rules. You couldn't even play by your rules. You had to find another way.
The solution was simple in concept: eyes on the target. Direct observation. Intelligence gathered not through deduction but through presence.
And for that task, one name rose above all others.
Shiina Hiyori.
Ryuuen had tested her loyalty throughout the semester. She had passed every examination. Her relationship with Sakamoto was purely intellectual—shared books, shared discussions, nothing more. No entanglement. No conflict of interest.
She was perfect.
He had sent her this morning with clear instructions: observe Class A's camp. Learn what you can. Report back.
The game was in motion.
Class A's camp. The plateau.
Shiraishi Asuka rose gracefully from the stone bench, her mysterious smile unchanged. She inclined her head toward Ayanokoji with the courtesy of a host dismissing a guest who has become, momentarily, irrelevant.
"It seems Sakamoto-kun has visitors. I'll leave you to your conversation."
She drifted away, her movements unhurried, rejoining the other Class A students at their various tasks. Within moments, she was indistinguishable from the background—just another worker in a community of workers.
The space around the stone table now held three figures.
Ayanokoji Kiyotaka. Sakamoto. Shiina Hiyori.
Shiina stood slightly behind Sakamoto, her posture gentle, her hands clasped before her. Her clear eyes studied Ayanokoji with quiet curiosity—they had seen each other in the library before, but never spoken directly. He was a familiar face attached to no meaningful interaction.
Sakamoto adjusted his glasses. The lenses caught the light, rendering his eyes momentarily inaccessible.
"Ayanokoji-kun. Welcome to Class A's temporary settlement."
Ayanokoji's nod was minimal. "We're conducting reconnaissance. My path led here."
His gaze flickered to Shiina—a deliberate pause, an invitation for explanation.
Shiina accepted it with a slight bow. "I'm Shiina Hiyori from Class B. I also came to observe Class A's camp."
"Class D. Ayanokoji Kiyotaka."
The formalities completed, a brief silence settled—not uncomfortable, but charged with the awareness that each of them represented competing interests.
The interruption.
Totsuka Yahiko approached at a half-jog, a bundle of freshly collected vines draped over his shoulder. His expression carried the particular frustration of a problem that should be simple but refused to cooperate.
"Sakamoto-kun—apologies for interrupting." He glanced briefly at the visitors, then focused on Sakamoto with the trust of someone who knew solutions would follow questions. "We're trying to reinforce the eastern shelter's roof, but these vines... they're too stiff. They won't hold tension. They keep loosening."
Sakamoto did not respond with words. He simply walked toward the material storage area, the others following instinctively.
He selected several vines of varying thicknesses—dry, rigid, apparently unsuitable. His fingers tested them, bending, twisting, assessing. Then he picked up a clay pot of water from nearby and immersed the chosen vines completely.
"Wait ten minutes."
His voice was calm, instructive, without condescension.
"Dry fibers lack flexibility. Water absorption softens them, increases elasticity. They will tie more securely and maintain tension once fastened."
Totsuka's face lit with understanding. "Of course! Thank you, Sakamoto-kun!"
He hurried away, calling to other students, eager to implement the solution.
Shiina watched this exchange with quiet appreciation. Such a simple technique. Such obvious logic. And yet, in the moment, not everyone would think of it. Sakamoto's mind worked differently—not in clever tricks, but in fundamental principles applied to practical problems.
Before she could dwell further, another figure approached.
The boundary.
Katsuragi Kohei's bald head gleamed with the sweat of labor. He had been working alongside the others—no task beneath him, no effort spared. But his expression, when he registered the two unfamiliar students standing near Sakamoto, shifted instantly.
Wariness. Vigilance. The protective instinct of a leader who understood that information was currency and strangers were potential threats.
"Ayanokoji-kun. Shiina-san." His voice was direct, carrying no hostility but no welcome either. "This is Class A's camp. It remains under construction. Extended visits from other classes are... impractical. I trust you understand the strategic considerations."
The message was clear: You've seen enough. Leave.
Shiina's expression remained neutral, but a faint tension entered her posture. Katsuragi's words were reasonable—from a competitive standpoint, they were absolutely correct.
But before anyone could respond, Sakamoto moved.
His hand rose. His glasses adjusted. His voice, when it came, carried the same calm authority that had shaped every aspect of this camp.
"Katsuragi-kun. Your caution is understandable, and your concern for our class's interests is admirable."
A pause. His gaze swept from Ayanokoji to Shiina and back.
"But this exam tests more than our ability to compete. It tests our capacity to observe, to understand, to communicate. Our guests have come openly, without deception. They have respected our space and our people."
Another pause, softer.
"They are guests. And guests, in any civilization, are entitled to courtesy."
Katsuragi's jaw tightened momentarily—then relaxed. He inclined his head, a gesture of acceptance if not full agreement.
"Understood."
He turned and walked back toward the worksite, leaving the three figures in their curious triangle.
Sakamoto faced Ayanokoji and Shiina once more, his expression unchanged, his presence as steady as the plateau itself.
"The island offers many lessons. Competition is one. Cooperation is another." His glasses caught the light. "Sometimes, the line between them is thinner than we imagine."
The words hung in the salt-tinged air, carrying meanings that branched in multiple directions.
Ayanokoji filed them away for later analysis.
Shiina simply watched Sakamoto's profile, her thoughts unreadable.
And above them, the sun continued its climb toward noon, indifferent to the small dramas unfolding in its light.
Sakamoto's expression did not shift. There was no warmth in his invitation, no eagerness to host—but neither was there resistance. His composed stillness communicated something far more powerful than words could convey: I have nothing to hide. I fear nothing you might see.
Katsuragi Kohei hesitated, his gaze moving from Sakamoto's calm face to the two visitors who had somehow found their way to the heart of Class A's camp. Every instinct as an organizer screamed at him to protect their position, to guard their secrets, to send these potential threats away.
But Sakamoto had spoken. And Sakamoto's judgment, earned through months of demonstration, carried weight that overrode even Katsuragi's strategic caution.
The vigilance remained in his posture, in the slight tension of his shoulders. But he did not object.
Sakamoto continued, his tone unchanged—that same measured cadence that made every statement sound like established fact.
"The island's resources are finite. But observation itself is not an act of aggression. Information shared, within reasonable bounds, can prevent the misunderstandings that lead to unnecessary conflict."
Ayanokoji listened, his expression betraying nothing. But behind his flat gaze, analysis churned at full speed.
Confidence or facade?
Sakamoto's openness could stem from genuine absolute confidence—the certainty that no amount of observation would reveal vulnerability because none existed. Or it could be a calculated performance, designed to project exactly that confidence while concealing something deeper.
Perhaps both. Perhaps neither. With Sakamoto, certainty was always elusive.
Beside him, Shiina Hiyori lowered her head slightly, a faint flush of embarrassment coloring her cheeks. Her voice was soft, genuinely apologetic.
"I'm sorry, Katsuragi-kun. We were simply passing nearby and curiosity got the better of us. If our presence is disruptive, we'll leave immediately."
Her humility was unfeigned. She had been sent to observe, yes—but she had not expected to be welcomed, and the discomfort of intrusion was real.
Katsuragi looked at her, then at Ayanokoji's unreadable face, then back to Sakamoto's eternal calm. The calculation in his mind was brief but genuine.
Sakamoto trusts his own judgment. I trust Sakamoto. And sending them away now, after he has spoken, would create more tension than allowing them to stay.
He exhaled, the last of his resistance releasing.
"Since Sakamoto-kun has no objection..." He paused, then continued with measured formality. "It's nearly noon. If you don't mind the roughness of our camp's fare, you're welcome to share a simple meal with us. Afterward, we can each return to our own affairs."
Ayanokoji's response was immediate, his voice flat. "Accepted. Thank you."
Shiina bowed her head slightly. "We're grateful for your hospitality. Please forgive the imposition."
Sakamoto said nothing. His silence was consent.
The meal. Noon.
Simple food, gathered from the island's bounty, prepared with the techniques Sakamoto had demonstrated. Algae and shellfish, wild vegetables and roasted tubers, served on fired clay plates beside the long stone table.
Ayanokoji ate mechanically, his attention elsewhere.
He watched Katsuragi move among the Class A students, checking on progress, offering guidance, maintaining the order that characterized their camp. The bald-headed organizer was clearly invested—protective of their space, vigilant toward outsiders, constantly assessing risk.
The role of a leader. Protective. Strategic. Engaged.
Then his gaze shifted to Sakamoto.
Sakamoto sat slightly apart, eating with the same unhurried grace he brought to everything. His attention seemed to be on the food, on the sea view, on nothing in particular. He did not direct. He did not manage. He simply existed, and somehow that existence organized everything around it.
The role of something else. Not a leader in the conventional sense. More like... a foundation. A center of gravity that others orbit.
The contrast was instructive.
Katsuragi led. Sakamoto enabled.
Ayanokoji filed the distinction away. It might prove useful.
Shiina ate in quiet appreciation, her gaze occasionally drifting to Sakamoto, then quickly away. She was here on Ryuuen's orders, yes—but the meal, the camp, the presence of these students around her—it was not unpleasant. Not unpleasant at all.
The sun climbed higher. The meal concluded. The visitors would soon depart.
But the impressions they carried would remain.