@jonsmth: Her dad seems kinda okay with that, going by some past chapters, but Jahy definitely hates the very concept and wants to do it the "traditional" way.
@MarqFJA87
If the father was actually okay with it, he wouldn't have been so distracted that he would put a halt to world domination.
Jahy only really hates Dou because the little one is getting in the way with the world domination.
For Jahy, her goal is to make Dou be an upright and independent demon so that the demon king wouldn't have to worry about her.
@jonsmth: That's just the struggle between his upbringing, responsibilities and desire to not break the public image that he had already cultivated among demonkind on the one hand, and what his daughter is slowly awakening in him as the story goes on. Also, I point you to his reactions at the end of chapters 3, 5 and 6, and how even in the other chapters he doesn't actually get angry or upset at the failures of Jahy's attempts to "rehabilitate" Dou, only surprised. It's becoming rather evident that Ahriman isn't as evil as he presented himself to be before his worries and doting over Dou started distracting him from world conquest.
I really hope she doesn't lead the kingdom into a period of peace and kindness with the humans. its a different world, demons need to be scary to survive.
shes a black sheep in this world, that's ok. no pc bullshit please