Wang Zheng didn't manage to meet Aina. He was obviously not taken seriously by the royal family of the Aslan Empire even though he was the "boyfriend." The whole Aslan Empire was in a confrontational state and were not welcoming to outsiders.
Wang Zheng was in Xiao Fei's laboratory. Now that Kashawen was the temporary president, the Aslan Empire had naturally become the main force of this campaign. The other countries were happy as well. They were willing to support it but were unwilling to be the greatest strength. It was best since Aslan wanted to be the world police. Moreover, the main purpose was to save their princess, so they should naturally contribute more.
Some of the bigger countries didn't agree. The superficial reason was certainly sound, but they knew there were repercussions to this. The Aslan Empire could also obtain certain diplomatic and geographical privileges through this battle.
It was easier to invite the devil in than to send him away.