User blog comment:Jackofalltrades9X/Enemies of the Holy War/@comment-4784862-20150914143214/@comment-121.54.54.47-20150915025830

They're not, though. Rou refused the offer to be the princess' personal militia, instead accepting Tomboy Princess' alternate offer of giving them preferential treatment.

Besides that, just because Rou was capable of defeating them THEN does not mean he was capable of oppossing Holy Kingdom at that time. From what we've seen, he definitely wasn't ready to face off against them, if we take the Beast King to be an example of the best (2nd best, anyway, as the Savior is probably stronger than any of the other kingdoms' champions) they have to offer.

Lastly, remember that Rou ousted ALL the foreign spies from Sternbild Kingdom. They have no way of knowing what deals Tomboy Princess made with Rou at the end as they were all either dead or kicked out way earlier than the kingdom rebellion's conclusion. All they know is all that Rou allowed the survivors/parasitized spies to share when he released them (assuming that none of the spy organizations were able to leave before Rou caught them). As there's NO method of sharing information over long distances (Rou's cuffs are a huge advantage in this regard) available to any of the other kingdoms, the other kingdoms may not have even known of Rou's existence before the announcement. The Holy Kingdom definitely didn't, as they didn't talk about Rou's involvement in Sternbild Kingdom's civil war at all.