They choose. Belial refused Haku for exampe.
Muu being able to attack without problem should made clear they can't do anything after the dungeons.
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They all want to. Kouen simply want to do it latter.They have the same path so they are helping each other. Whoever get there first win(either achieving their goal or becoming strong enough to be independent).
Ill-illah isn't part of Al tharmen he is there goal. If they do have a direct clash it wouldn't even him.
I think Haku is demonstrating it isn't simply about strength but also how you use your weapons. Plus they will once again be the common enemy once world domination is achieved.
Always interpreted as Kouen wanting not to kill them but basically control and integrate them into his kingdom like he was just using /controlling Hakuryuu. That always seems his plan to steamroll over, and, or incoorperate through force to adhere to his system of rule. That seems " his way of ruling". It seems the 1 thing Hakuryuu wasn't absolutely anger- filled- bat$!?!- crazy- to the max, mostly wrong about. Of course that was before Alladin's meet, but with Kouen still planning to conquer, doesn't seem he will change that much, enough anyway.
Magi 251 Spoilers: http://eleore.tumblr.com/post/105872051333/magi-251-spoilers
! * 8 days after the summit, Kouen, Koumei and Kouha are having a rather somber meeting. Koumei remarks that everything we had seen in previous chapters (the rebellion and Gyokuen’s demise) is true.
- Kouha says that he heard Judar learnt some very powerful magic (it’s interesting to note that he first calls him “Judar-kun” but later corrects himself to say “priest”). Koumei mentions that while they don’t know the source of such power, it indeed exists, and Phenex’s power was also removed.
- Apparently Hakuryuu issued an edict stating that Kouen is an usurper, and everyone who sides with him will meet the same fate - death. Still, Kouha mentions 80% of the empire is on Kouen’s side, while the later remarks that if you take into account his lineage, Hakuryuu is indeed the true successor. Koumei says that such a thing as lineage does not matter.
- "Everyone, listen. I have driven Hakuryuu into a corner. I was looking down on him even more than Gyokuen. If I was not going to support making him king, I should have killed him(*)… I am to blame for that. However, I have no intention of surrendering to Hakuryuu”.
- Kouha and Koumei both apologize, and the later says that they "will follow [him], wherever he goes". (Yes, the same thing Ja’far said to Sinbad :).
- Meanwhile, while they wonder why Alibaba and Aladdin have not arrived yet, Alibaba’s household is hoping they succeed on a little sneaky mission: to go see Hakuryuu and tell him the story of Alma Torran - behind Kouen’s back, of course xD. Mor: "They will [succeed]. If it’s those two, they will definitely succeed".
- To be honest, I think Alibaba’s hopes on Hakuryuu are a bit to high. He mentions that they have a common enemy, and unless they are defeated, everyone will die. Hakuryuu just doesn’t know that, so if they tell him, the war might be avoided.
- "Even if our ways of thinking aren’t the same… he is a comrade who fought by our side in the past."
- Alibaba thinks it might be difficult to talk to him, but he will still try, while images of Solomon, Arba and Cassim are shown. He knows he will otherwise regret it, so he won’t give up no matter what - especially after looking at what happened in Alma Torran. Aladdin is thankful that Alibaba is thinking of his homeland.
- Aladdin also mentions that Kouen will be angry when he realizes what they are doing, but Alibaba just says that it’s ok, given the current confusion everyone is in. Aladdin is rather impressed.
- Upon arriving to the capital, Aladdin notices the Insulation Barrier at once, and Judar praises him for it. He wonders if they have come to see Hakuryuu, and lets them in.
- "Yo! It’s been a while, Hakuryuu!" "Long time no see, Alibaba-dono".
! What part of that was Hakuryuu's sister present for?
Seems purposely hidden, thus confusing.
If she was hearing the part about shoulda, coulda, woulda killed him, think her loyalty to him would change at least somewhat.