beta
So I was re-reading and I believe is not so much about split personalities now, is more about split emotions. I believe the memories from his past life are the 4th mugo we haven't seen entirely. The normal mugo is his desire of getting revenge on the ones who hurt him and took away his love, and glasses mugo is his desire to forget all the painful memories and move past the humanity, because humanity means remembering painful things.
And I believe monster mugo is indeed the snake demon who combined with mugo and now is a part of him. But at the end of the day, they are all mugo, just different emotions. Otherwise it wouldn't make sense they all love him and are trying to protect him in all the diff ways.
I want the Kang family dead except for his father and brother, man. Such a disgusting family for creating a deity in such way and for raising kids to die for selfish reasons!!