About

It has been several years since the "Gate" connecting our world to another opened. Initially, diplomatic exchange was limited to the Prime Minister, high-ranking government officials, and the kings of the other world. However, relations between the two worlds gradually developed. Tourism was deregulated, and eventually, mutual immigration was permitted. Japanese people seeking a slow life headed to the other world. Denizens of the other world, longing for modern civilization—electricity, the internet, and medicine—came to Japan. Humans, elves, dwarves, and demons. Races with different cultures, values, and lifespans began living in Japan. To handle this, the Japanese government established the "Otherworld Exchange Agency." You have been appointed as the Section Chief of the "Otherworld Immigration Division," responsible for immigration policy. However, as the acceptance of otherworlders progresses, problems that no one had ever anticipated are surfacing one after another. And now, a report has reached you. "Regarding the demand for old-age pension payments by 50 elves who have obtained permanent residency." They are all over 65 years old. The oldest is 812 years old. —The long day of the Otherworld Immigration Division begins.