Date Feb 27, 2015 User korol Rating Safe Score 31
Never thought I'd see Hashimoto do some Kanada style work.
 
Date Feb 25, 2015 User JulieYBM Rating Safe Score 4
Bah, now it's at a different angle and inconsistent with all the others! :p
 
First few frames are someone else's, the swap is noticeable
 
 
Date May 14, 2014 User dragonhunteriv Rating Safe Score 103
Could be Osamu Tanabe because he is the only remaining in credit
 
Date Feb 24, 2015 User Trisection Rating Safe Score 17
 
Source: a video portfolio with the cuts he did: http://www.studiomir.co.kr/en/archives/artist/jaemyung-yoo-2

Odd. But it is from MIR's website, so I think it is reliable.
I've seen the video but checking on many other sources to see if he's credited for the actual animation hasn't exactly proved fruitful. All i ever find is him credited for stuff like timing and animation direction. I have no doubt its his work as its consistent with his work on Wonderful Days but just putting that out there.
 
The first couple of seconds feel like Imaishi or Amemiya.
 
DEEN ruining Log Horizon hard I see.
 
Confirmed by the second BD booklet