In the 1990s, when Go gambling fever swept Korea, Gui-su loses everything because his father gambled obsessively until there was nothing left. Left all alone in the world, Gui-su meets a mentor and Go teacher, Il-do, and goes through vicious training to become the grandmaster of Go. He sets out for revenge on the world that destroyed his life, but soon finds himself chased by an unknown loner pursuing his own vendetta.
Kwon Sang-woo
Gwi-soo
Kim Hie-won
Teacher Ttong
Kim Sung-kyun
Heo Il-do
Heo Sung-tae
Busan Weed
Woo Do-hwan
Loner
Jeong In-kyeom
Hwang Deok-yong
Won Hyun-jun
Shaman Jang Seong
Shin Soo-yeon
Soo-yeon
