Karneval, Vol. 4

After a successful rescue mission at the Smoky Mansion, Nai has his long-awaited reunion with Karoku and sees to his recovery aboard Circus's 2nd Ship. Meanwhile, Gareki enrolls at the government school Chronomé Academy, where he applies himself to the Circus Program and experiences school life for the very first time. Though apart, both Nai and Gareki set to their individual endeavors, their hearts and minds never far from thoughts of each other.

Meanwhile, at Circus, Tsukumo and company undertake a dangerous undercover mission......