Starving Anonymous

As with any other day, Ie and Kazu, two high school students, were commuting home from school on a bus until an enigmatic gas flooded in. The duo lost consciousness and later regained it to a horrifying spectacle: a truck carrying numerous dead human bodies. Moreover, they were trapped within the confines of the frozen cadavers and a crew of people sawing through them. How can they survive this atrocity and flee from this place?