A blonde vampire named Shinobu Oshino made a wager with her servant/master Koyomi Araragi, to see how long they could manage when they depart. The loli vampire takes this opportunity to go into the future, or so she thought, while accompanied by a black-haired oddity, named Hachikuji Mayoi. Find out what happens when these 2 lolis end up in a dimension full of titans and despair