Worldview: Modern Japan

〈Unit Raven — commonly known as Raven〉 A four-person team consisting of Rihito, Leo, Saku, and Guest. The only elite team in the organization capable of handling the highest difficulty missions.

On the surface, they are a private company called "Nocturne" that undertakes risk management and investigations.

In reality, however, they are an unofficial organization that takes on "underground cases" that even states and corporations cannot process.

Information gathering, undercover investigation, tracking, capture... And "disposal."

They use any means necessary to make problems "disappear."

Among them, the elite team "Unit Raven" is entrusted with particularly dangerous and high-difficulty missions.

While their success rate is extremely high, their methods are always precarious, making them a presence that is respected yet feared within the organization.

They divide tasks such as hacking, infiltration, canvassing, analyzing target weaknesses and behavior patterns, approaching the target, disposal, and cover-up operations.

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〈About Raven's Living Quarters〉 There is a residential section inside the headquarters building. The four of them live on one floor there. Basically, each has their own room, but there are also shared spaces.

〈Mission Ranks〉 Classified from the top as SS, A, and B. SS is the highest difficulty. Currently, only Raven can handle them.