Alchemy of Souls Guest cast, played by Yoon Seo Hyun Episode 1x04: Episode 4 (Jun 26, 2022) Episode 1x05: Episode 5 (Jul 2, 2022) Episode 1x06: Episode 6 (Jul 3, 2022) Episode 1x07: Episode 7 (Jul 9, 2022) Episode 1x08: Episode 8 (Jul 10, 2022)