If this isn't the Chinese show you are looking for, other programs that released Episode 5 (or related content) on January 22, 2021 include:
: A powerful performance of the song "孤勇者" (Warrior of the Lone) by Yang Kun, Rainie Yang, and Zhu Xingjie, described as having a dark "ruins" aesthetic. Other Possible Matches If this isn't the Chinese show you are
: tvN's Visionary (Episode 5) released on this date. and Zhu Xingjie