Granite Hammers Battles of the Quantum KT Boundary Vol.1 (Hentai Novelette)

The K-T Boundary the line in the fossil record were the dinosaur era ends and the next age begins, but this line in time is quantum and in flux. Juchika Furukawa has been sent from the future as a new Granite Hammer pilot, mechs made using stone-age technology. She and her fellow pilots will now have to face off against forces seeking to change the time line and ultimately the future. Will these girls from the future be able and will to sacrifice their bodies through primordial desires of the flesh to safe the past , present, and future as we know it.