https://twitter.com/gojooni/status/913121520142004224

I tagged soty as presumed because there are two educated guesses from other people (sahari sato-san and miso/tsuchigami-san).

Miso said:"初めの方の高級側宙あたり"
And sahari sato thinks they have same guess (Eiji's jumping part and side attack on monster). So, most likely goes from 0:00 until 0:23.

The Klein and Asuna cuts in that segment really feel like his work so it's a fair assumption.

guessing soty starts at 6 seconds, the rays from the sword are completely different. First 5 seconds probably belong to the previous upload