SPOILERS AHEAD: Was it just us or did It's Okay To Not Be Okay's lowdown on the lives of Moon Sang-tae, Moon Gang-tae and Ko Mun-yeong's intertwined past give you a sleepless night as well?
The tvN series released its 11th and 12th episodes over the weekend, unraveling secrets about the trio's past and opened the floodgate of theories.
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