Infinite: Sweet Home

The day supernatural creatures invaded, black fog blanketed the land, forcing humanity to scrape by underground for three years. The only way out, however, was through the Abyss instances that had appeared from nowhere. The instance rules were announced. "Anyone who enters will be randomly matched with five others and permanently bound to them. The group can leave only if everyone clears the instance. Success earns the right to return to the surface. Failure or a teammate's death carries no penalty, and there is no resurrection mechanic." The rules seemed fair. But after the horrifying catastrophe three years ago, humanity had learned one thing. Supernatural creatures never give anything away.