Ark Nine

9-nine- is a tale of the town of Shiromitsugawa, host to mysterious Artifacts and the superpowers they bestow on their Users. A tale of growing trust and budding romance between the protagonist and the heroine, and also a murder mystery where they hunt down the culprit behind a series of supernatural murders.

The "paranormal science" story follows nine idiosyncratic individuals, linked by the "Choujou Kagaku Kirikiri Basara" occult summary blog run by 17-year-old second-year high school student Yuuta Gamon. Little incongruities that occur around these nine eventually lead to a larger, unimaginable event that may alter what is considered common sense in this world.

An original anime set in a part of Tokyo that has descended into a quagmire, the story follows Unit 8 of the 5th Special Public Security Section's 3rd Mobile Assault Division — popularly called "The Eighth" — who don powered armor "Willware" exoskeletons to counter the rise in crime. Assistant inspector Asami Kazari is assigned to The Eighth with the task of assessing the unit's status and reporting it to her superiors. But her true goal is to rehabilitate this sloppy, haphazard, justice-less group.

In the land of Terra, natural disasters of unknown causes have been occurring irregularly in many areas. Therefore, the majority of the people, in order to escape those natural disasters, came to live in mobile cities developed over the years. The Originium left behind at the site of such Catastrophes, has led to the rapid progress of civilization due to their immense energy. But it also brought something else with it — an incurable disease called Oripathy. Because the bodies of those with Oripathy gradually crystalize and become a new source of infection at the time of death, in many countries, the Infected are subject to persecution under regimes of segregation and forced labor. Those who were oppressed by the governments are starting to rebel. Rhodes Island, a pharmaceutical company researching a cure for Oripathy, takes up their arms and starts a conquest trying to save all the people from the disease.