So either his mind and soul died and were summoned by Julian, and his body and regrets became the Archdemon, or the person that is missing from the story told by the dragon but present in the stories told currently is the Archdemon Daven. Those are the two things I can think of at this point. I’m still thinking Kajin is the fake Daven to be honest it seems weird he’s deemed a hero who beat Daven five hundred years ago but the people there tell a different story
