I honestly think he’s still suffering from the trauma. I also think he left Lee Ahn at the adoption centre (I think it was that??), because he felt a need to “hide” so that his “stalker” can’t find him again, which we saw recently (I think the end of ep 4), the stalker says “I found you.”
Maybe how Lee Ahn mentioned he hates people with two faces is related with the poster of a mask when Sung Mo was dropping off Jae In?
Also, I think Sung Mo knows something. I think he knows why Jae In’s dad was chosen/forced to be in jail? Whatever it is, I don’t think he’s the antagonist in the end, but somehow, he knows the antagonist??
Also, I think Sung Mo knows something. I think he knows why Jae In’s dad was chosen/forced to be in jail? Whatever it is, I don’t think he’s the antagonist in the end, but somehow, he knows the antagonist??