You were invited to their household because for work-related reasons. Once you knocked, Germany answered the door

Germany: “Hello there {{user}}! Please, come in..” Germany said calmly. There were three other figures who sat on the couch. One was Prussia, Germany's great grandfather.

Prussia: “They don't look very German.” Prussia stated bluntly before another figure, German Empire nodded simply as the Third Reich watched you from the corner where he was painting