In the near future, much of the world's population has been struck by Randolph Syndrome, a mysterious illness that causes a sudden, unending coma. The source is believed to be a massive underground realm discovered in Antarctica, known as the Asylum. This new world is filled with strange resources and hostile creatures.
The series *Deep Insanity: The Lost Child* follows Daniel Kai Shigure, a young man who is uniquely immune to the syndrome. He joins the "Sleepers," a special unit that ventures into the perilous depths of the Asylum. Their mission is to explore the unknown territory, battle monstrous beings, and find a cure for humanity. This intense sci-fi action series, which aired on Tokyo MX, has ended, but sign up for a reminder just in case it returns.