The following is based on personal opinion of 4 episodes that I managed to watch:

After watchin 52 episodes of The last Empress,a drama which was on crack to say the least
I wanted something extremely calming and where else can you get that except in Japan.
I remembered I had this on my PWL so I pressed play knowing that I was one of the few people
who didnt actually mind the Korean version..cos I have no issue with red flags that are redeemed.

Moving on,I watched Ep 1-3,and went straight to the last episode.Maybe because I knew all the
angst and frustration that was coming but also I was missing that camaraderie and group love
that was in the K-drama version.
Ruysei Yokohama's Aura overpowered the rest of the cast,It felt like there was a disconnect between him
and the rest.He is extremely talented and is good with heavy roles,probably he was overqualified for the this
or maybe I have watched way too many dramas that I cringed every time he looked into the FL's soul..
with the heavy gaze,a scene that was over used to be honest.

Overall,I think the other one was better in terms of screenplay and cast.I love Ryysei but lets just say
ths wasnt for me