Responses
I think too, the order of appearance of the personalities is their age. The sex maniac is the original, and he is the oldest.... and the eldest, although he is the youngest, because he is close to God, as he understood everthing... has a experience and knowledge.
No this is real
This special episode was so fun and I was laughing at the ages and order of the brothers but then it started clicking.
What if this is the actual order or the Mugos in the main story, we just call Elder Mugo "Elder" because of his vibe and mental age, but in cases where there are multiple personalities in one body, the newest and most recent personality could be the oldest theoretically (they manifested a child personality first then an old person personality as the newest) so what if monster Mugo is actually the oldest personality, born out of the basest and most primal instinct of "Hunger" when, going by the bits and pieces of info we're given, he was stuck in a jar with other snakes/beings that he had to fight and consume to survive.
What if the reason we think 'Elder' Mugo is the elder because he seems to know more than jerk Mugo and monster Mugo, but maybe it's just that 'Elder' Mugo is a Mugo that the family curated to be able to bargain and ask for favours from, since he's the most reasonable. He might be the most recent of them, but he knows more because the family constantly brings him forth using sweets and incense and he has to witness all their sacrifices and filth and wishes, so he knows more about the current world and era than the other Mugos. That's why he's more in touch with modernity than the other 2.
Food for the brain.