User blog:FateAlbane/Yamato Gotta go Fast but gets the No U

Summary/The Feat
"Perish the thought. Why wait for the conclusion of a battle that came to an end before beginning? For the first time in the existence you've been leading, it's you who cannot stay apace. (...) Discouraged? Don't be. Knowing how powerless you are in my presence by instinct alone is not a sign of weakness, but rather proof of your strength. Yet and if I must... I'll carve it into your eyes and etch in your spirit - the missing element you have yet to realize. That of despair. (...) And if your desire is to see hell, I'll have no qualms bringing it right to you.

''If Yamato was a branching lightning bolt in the sky, Sephiria would be the flash that precedes it. Before his mind could make a consideration about which action he should take, and much before a muscle in his hand had moved, the witch who once stood in front of him had long left the place he thought her to still be at. Even as she "walked" to him, and past the boy's back... Even as her hand gently rested upon his shoulder, his eyes had yet to perceive a single change in her movement. Until she stopped, and in a soft whisper to his ears, added: '' - If you *can* see it, that is." Pretty simple and straight to the point feat:

Yamato was fast enough at full speed to make a rain of arrows seem to be at a stand-still.

Well, he tries his luck against Sephiria and he's the one who seems to be at a stand-still.

Calc
was calced to be .

Using the exact same formula for Sephiria making *him* seem to be  using my speed when I'm sick or too tired to get out of bed in the morning  at a stand-still we get:

343 000/0.001 = 343 000 000 m/s

Convert that to Mach and it's 1000000 mach.

Convert that to lightspeed and we get 1.1341179236737 c.

Slightly FTL witch. Which is consistent given how Sephiria has been fighting Lucasta Knights and Mages before this point in the story (half offscreen/half on chapter 3) and those should have some actual light ray magic to throw at people.