I was surprised to find out that Yeo Jin Goo is on this show. I just completed Circle when I started Reunited Worlds. Watching this drama was a pure coincidence because I was bored and at the time, I needed a buffer drama while watching Six Flying Dragons with Mari. So I thought why not give it a try and if I don’t like the first episode (which basically two 30-minutes episodes) I could simply move on. No strings attached.