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|Portrayed by||Oh Jung-se|
|Appears in||It's Okay to Not Be Okay|
|Debut||episode 1: "The Boy Who Fed On Nightmares" (2020)|
Moon Sang-tae(Korean: 문상태) is a main character in the South-Korean romantic comedy-drama series It's Okay to Not Be Okay.
Sang-tae is described as having autism spectrum disorder and "high-functioning autism (HFA) with developmental disability grade 3" on his character page.