aya did 10km in 10 seconds. That's 1km per second....
Sound goes at 350~~m per second. So Aya was at match 3.
Still one step is done in a few seconds at most, so it's probably even faster, and all that mass created drag that ruined aya's run.
The ability to manipulate density (Suika)On your markGet set#80 Gensokyo 10,000 Meter Footrace Part 3幻想郷一万m徒競走 3Aya being swept by the great change in pressure due to the sudden movements of the supermassive object.The moment the supermassive object broke the sound barrier in Gensokyo.