Got Dropped into a Ghost Story, Still Gotta Work

I sacrificed my precious vacation to attend a pop-up event of a certain modern fantasy I loved so much. And on that very day, I got transported into that fantasy world. As none other than a newly hired employee at a renowned major corporation! A dream workplace with tons of benefits, a high salary, and kind, competent supervisors. Using my knowledge of the world, I quickly climb the corporate ladder! But am I happy, you ask? Please, let me go back home. (Source: KakaoPage, translated)