This appears to be K-drama news rather than K-Pop content. Park Hae Soo and Lee Hee Joon are actors, not K-Pop artists, and 'The Scarecrow' is a television drama series, not a musical comeback or release.

The story follows a detective who must work with someone he despises to solve a series of murders spanning from 1988 to 2019. While this might be interesting content for Korean entertainment fans, it doesn't fit the K-Pop focus of Knox Pop Con.

If you're looking for K-Pop comeback news, please provide sources about musical artists, album releases, or music-related content instead of television dramas.