An otherworldly dimension that has gathered terrible monsters that were once people. There, in a lonely cage, a girl who had lost her memory woke up. She is unable to get out of the trap alone, and besides, there is a monster walking around that is not averse to feasting on her life. A mysterious guy suddenly appears and kills the monster, but will the stranger want to let the poor thing out of the cage? And the main question: does she deserve to be saved? The handsome man needs evidence that the girl ended up in the dimension by accident. While the heroine’s memories are returning, the guy will be entertained by the stories that she will have to read. Otherwise, her life will end faster than it could have before meeting him...