The clash between Dimensional Forecast and Dimensional Vortex was no longer a battle of strength. It had evolved—into a war of wills, theory, and universal understanding.

  Kazuki’s crimson aura burned wildly, turbulence spiraling from him like a dying star resisting collapse. Inside his Forecast Domain, he began to leak raw mana—not randomly, but in erratic pulses of destructive pressure, letting the turbulence ripple into the boundary seams of Kairyuuha’s vortex domain.

  He wasn’t trying to overpower it.

  He was trying to disrupt it.

  > “His domain thrives on control... perfect curvature, rotational calculations, harmonic casting. If I disturb the composition even a little—I can unbalance him.”

  Kazuki’s eyes narrowed. His breathing slowed.

  He slipped into a new state—Perfected Movement—an evolved form of his Total Concentration Technique. In this realm of thought, his movements became like flowing data: instantaneous, refined, near-absolute.

  > *“Now... let me understand your pattern.”*

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  He began tracing Kairyuuha’s mana—tracking the subtle waveforms, mana rotations, energy spikes. But instead of discovering a code or rhythm...

  He found chaos.

  No predictable wavelength. No repeatable sequence.

  > *“What... is this? A pattern that doesn’t loop?”*

  The realization hit: Kairyuuha’s mana flow was irregular by design. A chaotic, adaptive rhythm—a living pattern, not static, but fluid and reactive. This allowed Kairyuuha to adjust his spells on instinct, aligning them with foreign patterns, even those meant to counter him.

  ---

  On the other side, Kairyuuha moved faster, his violet aura surging with momentum. He weaved between his celestial orbs like a phantom, compressing vortexes and dragging space itself into collapse. Every time Kazuki leaked mana out—Kairyuuha grabbed it, bent it, shaped it—simplifying Kazuki’s turbulence into usable fuel.

  Kairyuuha’s thoughts moved like a chessboard of destinies:

  > *“Stage one... war? Complete.”*

  > *“Stage two... defeat Kazuki. I don’t need to kill him. I need him to break. I’ll overwrite his will...first I've got to make sure he memories the complex patterns of my mana and then chain him into my the last domain—one with a perfectly opposite pattern. He’ll be unable to adjust... and his mana will nullify itself.”*

  And when Kazuki falls... they will come.

  > *“The Custodians—the so-called Gods. The ones who turned humanity against its greatest hero. I felt them when the execution blade fell. Watching. Guiding.”*

  > *“And when I slaughtered one of them for the Realm Key... the presence returned. Same trace. Same scent. This isn’t divine justice... it’s a trap.”*

  Kairyuuha’s movements intensified, like a storm collapsing on its own eye. He twisted his fingers and the dimensional walls curved, forcing more of Kazuki’s leaking mana inside the vortex domain. With each leak, Kazuki’s turbulent flow has managed to synchronise a little with Kairyuuha's mana patterns.

  ---

  Kazuki gritted his teeth, blood slipping from the corner of his mouth.

  > “He’s forcing my hand... my mana’s being consumed... turned against me.”

  Still, he refused to fall.

  Red lightning coiled around his arms. He knew his brother wasn’t fighting to kill him...he was trying to break him—to make him give up.

  And that’s something Kazuki never would.