The development team of the jellyfish ship, a small spacecraft manufactured by relying on new technologies that "changed the history of human aviation", is conducting flight tests of new models. An accident occurred unexpectedly, and the jellyfish boat crashed into the snowy mountain. In the bad weather, team members waiting for rescue were killed one after another. With nowhere to escape and no survivors, where is the real murderer?
The informal police officer Maria and her subordinate Ren Kujo launched an investigation, but encountered interference and obstruction from the military along the way. The shady research on jellyfish boats actually involves a key figure hidden behind the technological revolution...
