Production Ryu Gyu-sun Biography Famous for being Yoo Byung-jae manager, director, & CEO of show production company Black Paper Other Credits Blind Date for 72 Hours in Hokkaido, and After Executive Producer 2025 Yoo Byung Jae: Discomfort Zone Producer 2018 Yoo Byung Jae: Too Much Information Producer 2018 Agent-readable