Is 67 from Squid Game a girl or boy?

Is 67 from Squid Game a girl or boy? And be warned, there are some major spoilers ahead. Player 067, aka Kang Sae-byeok, is a fiery young woman who narrowly escaped North Korea with her younger brother.

And be warned, there are some major spoilers ahead. Player 067, aka Kang Sae-byeok, is a fiery young woman who narrowly escaped North Korea with her younger brother.