Tonton Streaming What's Wrong with Secretary Kim (2018) S1E9 - Let's Make It Official

Finally, the long-awaited official relationship between Mi So and Young Joon begins! Her faithful response to his genuine love sends him to the highest mountain peak—figuratively speaking—where he shamelessly screams, “Kim Mi So is my woman!” However, their desire gets the whole office's attention, and puts Mi So in a position to set things right that leads to their first official fight.