Kamui's childhood friend whose cold-blooded murder by Fuma triggers his trauma, catatonia, and eventual resolve to fight.
Deep romantic bond tested by apocalyptic destiny, shattered by Kotori's death and Kamui's resulting trauma.
Mystical connection where Kakyō shapes dreamscapes to process Kotori's lingering presence and unresolved destiny.
Kotori becomes a strategic vulnerability for Kamui, exploited by Seishirō to force his hesitation.
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