beta
I believe he's a half gumiho from his mother side and she gave him her bead when his parents died in the car accident. She probably did to dave his life and she didn't know whether or not if he had a bead because he's only half. Thats probably why beak father is confused about him,not being human ,because he's half human/gumiho but also a Maegu because he has his mothers bead.Then that make his son more than have gumiho, so his son most likely has a bead.