A killer from the past with red hair and glasses. He calls Neung-sa 'kid' and first appeared in Episode 1 of Red Moon Story. He is a contract killer presumed to have been active before the Killer Ranking app was created. He is suspected to be affiliated with King & Kill or Wanggwan Construction.

A timid boy who sought out Jeokgwi Yaywol to learn from him, only to be given a single knife. He has stitch marks on his neck and forehead. Past: Chairman Wang killed all his friends at the orphanage. He hid in a closet and escaped with only a minor forehead injury, but was eventually discovered. His neck was stabbed horizontally with a katana, but he survived by staying silent without screaming.