Plot: A story of a child born with the XXXY syndrome who decides to choose their own gender and future while going through adolescence.
Cast
Ahn Hyun-hoJung Jae-yiAhn Hyun-ho was 27 in O’PENing - Season 1 - XX+XY Episode 1 (Episode 3).
Birthday: Fri, Dec 30 1994
Choi Woo-sungBang Woo-ramChoi Woo-sung was 24 in O’PENing - Season 1 - XX+XY Episode 1 (Episode 3).
Birthday: Wed, May 21 1997
Kim Ji-inLee Se-raKim Ji-in was 25 in O’PENing - Season 1 - XX+XY Episode 1 (Episode 3).
Birthday: Tue, Sep 17 1996
Sim Yi-youngHan Soo-youngSim Yi-young was 42 in O’PENing - Season 1 - XX+XY Episode 1 (Episode 3).
Birthday: Thu, Jan 31 1980
Yoon Seo-hyunJung Yeon-ohYoon Seo-hyun was 51 in O’PENing - Season 1 - XX+XY Episode 1 (Episode 3).
Birthday: Mon, Nov 02 1970
Song Yong-jinMoon Tae-hyunSong Yong-jin was 46 in O’PENing - Season 1 - XX+XY Episode 1 (Episode 3).
Birthday: Thu, Feb 26 1976