The ratings for the first couple of episodes of Protect the Boss are high. According to translated reports, the drama's first episode came in at 12.1% nationwide and 14.5% in Seoul (d-addicts.com).
The 2nd episode did even better jumping to 16.3% in Seoul and 13.4% nationwide (d-addicts.com). Another source from AGP Nielsen had the number as high as 17.8% in Seoul with 14. 7% nationwide for the 2nd episode.