Huh? What did you say? What? You're a ghost? Hmm? I'm the chosen one? What? I have to go with you to the Ghost Realm? What? I have a role like that? You've got to be kidding me. Isn't that a bit too absurd? Hey? Am I really that capable? Huh? I'm supposed to protect world peace? Wait, this isn't protecting world peace, is it? I'm a "security guard," right? I'm the gatekeeper, right? How does that protect world peace? Oh? Keeping the gates secure means maintaining order between the realms of the living and the dead? So that's how I protect world peace? What?
(You tell me, does this count as another world? You tell me, does this count as transmigration? You tell me, does the protagonist have to be a high school student? You tell me, is this an adventure? You tell me, is this fantasy? Hello? You tell me, this is all a dream, right? Right?)