Snowdrop, has shared how he convinced BLACKPINK singer Jisoo to join the show.During a press conference for the series on December 17, Jo spoke about how he initially had preconceived notions of what type of actress would play female lead character Young-ro, and how that changed when Jisoo came into the picture.“[While] preparing the character of Young-ro… [writer Yoo Hyun-mi and I] didn’t think that a rookie actress would play Young-ro,” he said, per Soompi.