Rain said, "We work well together. Because Krystal was my junior, she was an artist I liked as a senior and as a fan. There's a need to become close in order to get rid of nerves among actors, so the cast members all gathered together. That's how our intimacy started. Krystal follows me well like an oppa.

We have about a 12-year age difference, and this is my first time acting with a friend with whom there's such a big age difference. She was not like a young friend, at all, and she was very smart. I think we are in a similar generation mentality-wise. We are similar mentally and our chemistry is good. What I'm grateful for more than anything is that she listens to me well and follows me well