I can't help but think it's a little sad that the writers of Wonderfools didn't utilize Koo Jun-mo's (the supporting detective) character as much as they could've because he could've been such a great parallel for the Wunderkinder, particularly his relationship with the grandmother and their relationship with Dr. Ha.
Most of the kids in the orphanage were either abandoned or orphaned and it seems safe to assume that Jun-mo is the latter, as the only familial relationship we see him exhibit is with the grandmother. While he and the other kids who weren't experimented on were rescued, the Wunderkinder were not because Dr. Ha told them to hide and wait for him. After Jun-mo and the Wunderkinder grew up, they found their way back to Haeseong. The difference was that Jun-mo went there of his own volition while the Wunderkinder were taken back there by Dr. Ha.
Jun-mo worked with the grandmother and clearly built some parental/mentor relationship with her despite the fact that her actions had caused him harm because she'd tried to repent for it. The Wunderkinder, on the other hand, act as if they owed Dr. Ha their trust despite everything he had done to them because he was the only one to show them any kind of parental love (as twisted as it was). Jun-mo and the Wunderkinder's loyalty and love for their parental figure is different because the grandmother doesn't take advantage of Jun-mo. She funded his schooling and pays him for his services while Dr. Ha just uses the Wunderkinder, taking advantage of their abilities to escape consequences and accomplish what he wants despite the fact that he knows using their abilities hurts them. He dangles relief and freedom over their heads to keep them underneath.
There's something so genuinely fascinating to me about the scene where Ho-ran (hallucination girl) takes on Jun-mo's appearance and the one thing that gives her away is that Jun-mo always calls the grandmother 'Grandma' (and she calls him a nickname "Gunie', similar to the one she call Chae-ni, which is "Eunie"). The first thing she does is check that he's okay, which is the complete opposite of what Dr. Ha does with the Wunderkinder.
There's also the fact that out of everyone in the room, Ju-ran (brainwashing girl) used Jun-mo to point a gun at the grandmother's head after Dr. Ha, the man she viewed as her father, was indirectly killed due to her actions. The guilt Jun-mo would've felt if he had pulled the trigger would've mirrored her own turmoil.
Just. Jun-mo and Wunderkinder parallels when it comes to their lives and relationships with their parental figures.
