The writer for this drama has two excellent (my opinion, of course) dramas. From 2015 "Mask" with Soo Ae and Joo Ji-hoon, and "Secret Love" (2013) with Ji Sung and Hwang Jung-eum.
Sounds like switch. But anyways.. gon watch it for Yoo Young.
Me too! She was recently in two-episode romantic comedy called "You Drive Me Crazy". I watched it on Viki, but don't know what regions it's licensed in. Here's the link if you're interested in checking if it's available in your area. https://www.viki.com/tv/35878c-you-drive-me-crazy?q=You%20Drive
Source and pics of cast: http://www.dramapanda.com/2017/11/the-cast-of-in-new-york-begins-filming.html
https://www.viki.com/tv/36103c-new-york
https://en.wikipedia.org/wiki/Empress_of_the_Ming
https://www.viki.com/tv/36101c-my-poseidon
https://www.viki.com/tv/36104c-irreplaceable-love
https://www.soompi.com/2018/06/07/jtbc-announces-plans-2nd-season-waikiki/
https://www.soompi.com/2018/06/07/jtbc-announces-plans-2nd-season-waikiki/
https://www.viki.com/tv/35878c-you-drive-me-crazy?q=You%20Drive
https://www.amctheatres.com/programs/independent/asian-pacific-cinema
https://www.dramafever.com/drama/5185/Our_Time_Will_Come_-_%E6%98%8E%E6%9C%88%E5%B9%BE%E6%99%82%E6%9C%89/
https://www.dramafever.com/drama/5178/