Got Dropped into a Ghost Story, Still Gotta Work

A pop-up event for "A Certain Modern Fantasy," a novel I loved so much I even used my precious vacation days to go. And that day, I was transported into that very modern fantasy. As a newly hired employee at a famous conglomerate, no less! Good benefits, good salary, and even my direct superiors are kind and competent—it's a dream job. Using the knowledge of the world that only I possess, I'm rapidly climbing the corporate ladder! Am I happy? Please, just send me home. ※Special Note: The genre is horror.