Yoo Sun Ho is not a good actor after the first 3 episodes, but otherwise, I enjoy the drama very much
I'm surprised and disappointed by your assessment. While I haven't yet watched the story of parks marriage contract, I did watch Under The Queens Umbrella and Yoo Sun Ho was just amazing in it.
Okay. So, I just finished watching it. It is definitely NOT a BL. So we can rule that out. There are some very few suggestive subtle bromance moments that almost to me felt like Queerbaiting, at best. Yoon San Ha is funny. I loved him. Kim Kang Min was very good too. Their banter was hilarious. I really enjoyed it. But definitely not BL and not bromance either to be honest.