Bruno had more or less entertained the Japanese aristocracy for the night, or at the very least, the Royal Family of the Eastern Empire.
Sakura, of course, was very angry with Bruno for not immediately recognizing her and had stormed off to her room to write a series of angry letters, venting her frustrations to her pen pals, who just so happened to be the other princesses with whom Bruno was acquainted.
It wasn't all too surprising that these young women all knew each other. After all, the German Reich, Austro-Hungarian Empire, Russian Empire, and the Empire of Japan were in a military alliance with one another at the moment.
To say that there was at least one opportunity over the past few years for them all to meet up together and hit it off was an understatement. Diplomacy was an important part of a monarch's duties, and oftentimes it was conducted in person, over dinner, with one's family.
