I have watched 3 versions of the same story- Korean, Chinese and Japanese. And J version seems to be the best of 3 because they have removed all the unpleasant things from the other 2 versions which will generally bother you namely the amount of rudeness the ML shows the FL for no apparent reason! Here the ML is more sensible and therefore more likeable of all 3 versions of the ML. And since it is only 10 episodes there are no unnecessary fillers which is a huge plus!

Acting wise : In Korean version, the FL's acting was over the top, ML was good, in Chinese version, the FL is good actor, the ML has no expressions at all! In this version FL is good and ML is OK but needs to improve a bit. I have watched him in anime based movies where exaggerated reactions are necessary but here he should have toned in down in certain scenes but overall this version has both leads who act well.