You might have read reviews which said its too long and story got boring and stiff ask yourself the purpose of you watching the drama it is to escape reality and think this is the perfect drama which is realistic but is an escape from your reality. Till 21 episodes the story is their after it it is all fan service. Cute kisses to seductive kisses obedient guy to dominant guy you will get everything and not to mention the ost. And if that is not enough the behind the scenes on their yt channel is definition of cuteness overload. Their are the power couples of cdrama if i am saying this i mean it. You will regret if you dont watch but everybody has their own taste so if your looking for a basic drama it is not that it has slow burn romance with chemistry and maturity as well