These are viewership ratings and they aren't very good.
Snowdrop's viewership ratings after the first episodes are in and they aren't looking very good. According to TMNS, after all the hoopla and controversy, the drama's first episode scored a measly 2.34% viewership rating. Considering that the only playback streaming service streaming the drama is Disney plus which is very new to Korea, the numbers are even less impressive.
The second episode faired slightly better at 3.19%. To put this into perspective drama 'Melancholia', which received almost zero press had a first episode rating of 3.6%.
Will the drama turn things around? We will see, stay tuned for breaking coverage.