The underground smelled of old dust again.

  Not the scent of something freshly broken, but of something that had been accumulating unseen for far too long. Damp stone. Tired concrete. Stagnant air.

  Koneko dragged Kaelan along, holding him under the arms. His body didn’t weigh what it should have. It wasn’t physical weakness exactly—more like a strange absence, as if part of him had been left… out of phase.

  “Kaelan…” she said quietly. “Wake up.”

  No response.

  His chest rose and fell steadily. His pulse was there. Alive. Stable.

  But his aura wasn’t.

  The Resonance pulsed irregularly—soft, insistent—like a heart that couldn’t find the right rhythm. Koneko felt it against her own skin. Not hostile magic. Something restless. Disoriented.

  Trying to return.

  “No,” she murmured, tightening her grip. “You’re not going back there.”

  The ground stopped vibrating completely.

  The fissure was gone. No visible trace. No clear mark. If someone came down here without knowing what to look for, they’d see nothing more than an old basement.

  And nothing else.

  But the echo remained.

  Not a sound.

  A dull pressure.

  As if the air remembered being forced.

  Koneko’s instincts screamed danger.

  Not an enemy.

  Not a creature.

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  Something worse—an error that had almost held.

  Footsteps echoed from above.

  Koneko didn’t turn. Her entire body tensed.

  Tsubaki was the first to appear, descending the stairs with mechanical precision. Her eyes scanned the scene in a fraction of a second:

  the ground where cracks had faded;

  the exact point where the air had given way;

  Kaelan’s aura, still vibrating out of phase;

  Koneko holding him as if letting go were unthinkable.

  She dropped to her knees beside them.

  “He’s unconscious,” she said. “Pulse stable. No internal collapse.”

  Saji arrived next, leaning against the wall, breathing hard.

  “What… happened…?” he managed. “This wasn’t in the report.”

  Koneko didn’t take her eyes off Kaelan.

  “Something tried to hold,” she replied. “It used what was nearby.”

  Tsubaki frowned.

  “An incomplete fissure?”

  Koneko nodded slightly.

  “It didn’t open,” she said. “But it didn’t close properly either.”

  Saji swallowed.

  “That’s… worse, isn’t it?”

  No one answered.

  Sona descended last.

  And the moment she stepped into the underground, the atmosphere changed.

  Not because of magic.

  Because of presence.

  She stopped in front of the point where the fissure had failed, studying the empty space in silence—measuring something that was no longer there, yet had left a trace behind.

  Tsubaki spoke first.

  “President. The fissure never formed a core. It failed before stabilizing.”

  “I can see that,” Sona replied.

  Saji stepped forward.

  “So… what was it? An attempt to enter? To exit?”

  Sona didn’t answer immediately.

  She looked at Kaelan.

  The Resonance was still active, but contained. Not dangerous. Not explosive.

  Like a detuned instrument left vibrating.

  “It wasn’t a full summoning,” she said at last. “And it wasn’t a portal either.”

  Koneko looked up.

  “It was… something seeking balance.”

  Sona met her gaze for the first time.

  Koneko held it.

  “It didn’t know what he was,” she continued. “Only that he fit.”

  The word hung in the air.

  Fit.

  Sona leaned slightly closer, without touching him.

  For a single second—just one—her expression cracked.

  Not fear.

  Not calculation.

  Concern.

  Then it sealed itself away again.

  “Move him,” she ordered. “And seal this area. No students are to come down here until further notice.”

  Tsubaki nodded immediately.

  “Yes, President.”

  Koneko didn’t let go of Kaelan.

  Sona watched her for a moment.

  “Toujou-san,” she said. “We can—”

  “I’ll hold him,” Koneko replied.

  It wasn’t defiance.

  It was necessity.

  Sona studied her. Then nodded.

  “Very well.”

  Saji opened his mouth, surprised, but said nothing.

  As they climbed the stairs—Kaelan unconscious between Koneko and Tsubaki—the Resonance released one last pulse.

  Not strong.

  Not dangerous.

  A solitary heartbeat.

  Not calling.

  Searching for coherence.

  And though no one heard a sound…

  they all understood the same thing:

  This wasn’t over.

  It had only failed this time.