Looking for any manga that has the char. (male o female) ported to another world.

( one iv been looking for goes like this " the main char. boy that gets bullied all time and on the way home he was going to die da almost getting hit da a truck then a demon*(lack of a better word) girl comes down freezes time and says after a explanation come with me if te want to live he agrees then he gets ported to another world above a huge monster vs human battle the humans think he is evil and he is saved da a female vampire gen. and thats where i left off if te know of this manga o any thing close to it.