Before we proceed, Mandatory Warning: Spoilers AheadThe first half of It's Okay To Not Be Okay carefully layered in the mysterious death of Moon Gang Tae and Moon Sang Tae (played by Kim Soo Hyun and Oh Jung Se)'s mother.
Although the details of the death have been kept under the wraps by the makers, it was revealed that the autistic Sang Tae was present when the mother passed away.
On the other hand, the director has also weaved in the question about the disappearance of Ko Moon Young (Seo Ye Ji)'s mother.
Over the past few episodes, it was presumed that the mother - also an established writer - had died. Moon Young's father Ko Dae Hwan time and again murmured that the "monster" aka Moon Young's mother is dead and he killed her.
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