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Spoiler Alert: This page contains spoilers. Read at your own risk. |
Diffusion 拡散) is a spell which targets sound which the user uses to move stealthily. By setting an area of effect, the magic expands to obstruct sound whilst not preventing the average noise from passing through. This allows one to move around whilst anyone nearby will only hear the background noise rather than silence which could tip them off. As such the magic is designed to be indistinguishable.[1]