The Luminous Solution Guest cast, played by Toosafe Tongsapak Episode 1x01: Episode 1 (May 27, 2023) Episode 1x02: Episode 2 (Jun 3, 2023) Episode 1x03: Episode 3 (Jun 10, 2023) Episode 1x04: Episode 4 (Jun 17, 2023) Episode 1x05: Episode 5 (Jun 24, 2023) Episode S01 Special: Side Story Nack-Napat (Aug 5, 2023)