Apocalyptic Monster Dawn: ninja and kunoichi unite

A piece of meteor falls to earth at the poles and freezes, until after many years global warming occurs due to human activity so that the ice at the poles melts, unexpectedly the piece of meteor contains alien monster eggs which then hatch its call Xeno-infected predator and prey on animals Infect them and grew into many mutated beast. The story begins in modern times, there are two ninja academies (male) and a kunoichi academy (female), they are rivals but not enemies. However, in one night the Ninja Academy was attacked by a large number of unknown monsters and the academy became ruins. Some of the survivors fled separately, and the player was one of the survivors who delivered the news to Kunoichi Academy.