109 Strange Things Main cast, played by Choi Tae Joon Episode 1x01: Episode 1 (Feb 1, 2017) Episode 1x02: Episode 2 (Feb 2, 2017) Episode 1x03: Episode 3 (Feb 8, 2017) Episode 1x04: Episode 4 (Feb 9, 2017) Episode 1x05: Episode 5 (Feb 15, 2017) Episode 1x06: Episode 6 (Feb 16, 2017)