Greece continues to struggle with his nation's financial woes, leaving it up to the other nations to brainstorm ways to restart his economy. This soon kicks off what would be known as the Industrial Revolution, wherein America rises to completely surpass the rest of the world in both technology and economic strength. Fearing that he is losing his influence on the global scale, England begs the other nations for ideas to restore his country's image. At the same time, smaller nations are eager to make their mark with their newfound independence. Czechoslovakia has officially been split into the Czech Republic and Slovakia, leaving the two nations at odds with each other but with a lot of free time.

In a tumultuous era of World Wars and general uncertainty for the future, Germany did not expect that his only constant allies would be North Italy and Japan. Despite being a descendant of the once-powerful Ancient Rome, North Italy is weak, useless, and overly in love with pasta. In contrast, Japan is reliable and pragmatic, but has strange obsessions that would bewilder anyone. Believing he drew the short end of the straw, Germany must think of a way to make this unlikely alliance work. To rub salt into the wound, the chaotic Allied Forces arrive, determined to stop the Axis Powers in their tracks. While they all share a common goal, none of the Allies can set aside their centuries of differences to fight as a cohesive front. As conflicts continue, these personified nations act out the events of World Wars I and II in a comedic and entertaining manner.

Keiichi Maebara has just moved to the quiet little village of Hinamizawa in the summer of 1983, and quickly becomes inseparable friends with schoolmates Rena Ryuuguu, Mion Sonozaki, Satoko Houjou, and Rika Furude. However, darkness lurks underneath the seemingly idyllic life they lead. As the village prepares for its annual festival, Keiichi learns about the local legends surrounding it. To his horror, he discovers that there have been several murders and disappearances in the village in the recent years, and that they all seem to be connected to the festival and the village's patron god, Oyashiro. Keiichi tries to ask his new friends about these incidents, but they are suspiciously silent and refuse to give him the answers he needs. As more and more bizarre events occur, he wonders just what else his friends might be keeping from him, and if he can even trust them at all. When madness and paranoia begin taking root in Keiichi's heart, he will stumble straight into the mysteries at work in Higurashi no Naku Koro ni, a story that is told across multiple arcs.

Gods and ghosts only exist in fairy tales, right? That's the impression that high school girl Tamki Kasuga has before she goes to live with her grandmother in the remote village of Kifumura. After being attacked by strange creatures upon her arrival, she is soon informed that females in her family contain the blood of the Tamayori Princess, who has the responsibility and power of keeping gods and ghosts sealed away so that they can't harm the general public. At first Tamaki has trouble believing this, but having five beautiful young men following her everywhere she goes acting as her guardians goes a long way towards convincing her. There's more to this job than Tamaki first realizes, however, and the path that lies ahead of her is fraught with peril and danger. Will she be able to successfully take on the heavy role that has been put on her shoulders?