The training grounds were already active when Kei arrived.

  Morning light filtered through the high reinforced windows, casting long pale lines across the floor. The air carried the faint echo of earlier drills—footsteps, impacts, distant commands—but the central hall remained mostly empty.

  Mostly.

  Kei slowed when he noticed the figure already standing there.

  Commander Belle of Unit Three.

  She stood near the center of the hall with her arms folded neatly, posture composed and dignified. Unlike the usual relaxed atmosphere around most commanders, Belle carried herself with gentle confidence—calm, observant, and professional.

  When she noticed Kei approaching, she turned toward him.

  “Oh… you must be Obirin,” she said.

  Her voice was soft, but clear. Not timid — just measured.

  Kei stopped immediately and bowed.

  “Y-Yes, Commander.”

  Belle smiled faintly. “At ease. I was just… passing through.”

  She walked a slow circle around him, observing in a way that felt more academic than intimidating. “So it’s true. Ren is training you personally.”

  Kei kept his eyes forward. “Yes.”

  “That’s rare,” Belle said thoughtfully. “She usually doesn’t—”

  The air shifted.

  Belle stopped speaking.

  The temperature in the room seemed to drop without warning, pressure settling across the space like invisible weight. Kei felt it instantly. His spine straightened on instinct.

  Belle did too.

  Both of them turned toward the entrance.

  Ren Yamashiro stood there.

  She hadn’t raised her voice.

  She hadn’t announced herself.

  She simply existed — and the entire hall adjusted around her presence.

  Belle’s posture changed at once. Subtle, but clear.

  “R-Ren,” she said, then quickly corrected herself. “Commander Yamashiro.”

  Ren approached with slow, measured steps.

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  “Belle,” she said calmly.

  There was no hostility in her tone.

  But there was familiarity.

  And authority.

  Belle offered a polite smile that didn’t quite hide her tension. “I didn’t realize you’d be here this early. I was just… checking the training schedules.”

  Ren stopped beside Kei.

  “He is mine to train,” Ren said.

  It wasn’t aggressive.

  It wasn’t loud.

  It was final.

  Belle straightened slightly. “O-Of course. I wasn’t interfering.”

  Ren looked at her for a long second — not cruelly, but with the quiet intensity that had made even veteran commanders cautious around her.

  Belle shifted her weight.

  “I was only curious,” she added quickly. “You don’t usually take direct trainees.”

  Ren said nothing.

  The silence stretched just long enough to become uncomfortable.

  Then Belle stepped back.

  “Well,” she said with a small nervous laugh, “I’ll leave you to it.”

  She gave Kei a polite nod, then looked back at Ren.

  “I’ll see you later.”

  Ren gave a slight nod in return.

  Belle exited the hall with noticeably quicker steps than when she’d entered.

  The doors closed.

  Silence returned.

  Ren turned to Kei.

  “Guard.”

  He obeyed instantly.

  Training began.

  Ren did not ease into it.

  Her first strike came fast enough to blur. Kei barely raised his guard in time, the impact forcing him back two steps. He stabilized, reset, and moved forward again.

  She pressed him harder today.

  No pauses.

  No gradual build.

  Immediate pressure.

  Each exchange forced him to react faster than before. When he adjusted, she changed angle. When he adapted, she increased speed. There was no rhythm to rely on, no predictable pattern to learn.

  Only constant correction.

  Kei hit the ground twice within the first minutes.

  Each time, he stood immediately.

  Sweat gathered quickly along his brow. His breathing grew heavier, muscles tightening from strain as he forced himself to match her pace.

  Ren stepped in again.

  He blocked. Barely.

  She redirected, forcing him to pivot instead of retreat. He adjusted faster this time. Cleaner. More controlled.

  A faint flicker passed through Ren’s eyes.

  Progress.

  Minutes stretched.

  Finally, Ren raised her hand.

  “Stop.”

  Kei froze mid-motion, chest rising and falling rapidly.

  Ren studied him in silence.

  “You improved,” she said.

  Kei straightened despite exhaustion. “Because you corrected me.”

  Ren’s gaze sharpened slightly at the answer.

  “You were concerned earlier,” she said.

  “Yes.”

  “That another commander might instruct you.”

  “Yes.”

  “Why?”

  Kei answered without hesitation this time.

  “…Because I am assigned to you.”

  The words settled between them.

  Ren stepped closer.

  Close enough that he could feel the faint shift of air as she stopped in front of him.

  “You will not respond to direction regarding your development from anyone except me,” she said quietly.

  “Yes, Supreme Commander.”

  A pause.

  Then Ren lifted her hand slightly

  Her hand moved toward Kei, reaching up to his head. She held it gently, then pulled him closer and planted a firm kiss on his forehead. The sudden action shocked both Kei and herself. It was intended as part of the reward system — nothing more, nothing less.

  Yet her cheeks flushed bright red in frustration as she realized she had momentarily lost control over her own body.

  A brief silence followed.

  Then, with visible effort, Ren steadied her breathing and forced her composure back into place. Her expression returned to its usual calm authority, as though nothing improper had occurred

  Ren withdrew her hand and stepped back as if nothing unusual had occurred.

  “Training concludes for today,” she said.

  “Yes.”

  She turned and walked toward the exit without further comment. The doors opened and closed behind her in smooth silence.

  Kei remained standing in the center of the hall.

  Exhausted.

  Bruised.

  But steady.

  Above them, in the quiet observation corridor, the automated lights dimmed slightly as systems shifted into standby.

  And for the first time since this training began—

  Ren Yamashiro had made it unmistakably clear:

  No one else would shape him.