It was obvious that, at some point, influential people would want to exploit the Japs overwhelming powers for their own gain.
Twas obvious, but I really can't say I enjoy that sort of tension in this sort of a story. Their stupidly overpowered selves was initially meant to carry the story with quirks and light-heartedness . Right now, it devolved into kingdom vs kingdom political warfare.
It's really hard to start out "stupid", and then carry it over to harsher grounds. I can only think of Shield-hero and Kumo Desu Ga as somewhat successful examples, and this one definitely doesn't feel like one.