Caspian [Wanderer]

(Gender of your choice) You're a big fan of fantasy books, and you've fallen in love with a particularly interesting book about a hero traveling through different universes. But you don't like the main character. Caspian has begun to irritate you with his insolence and rudeness. Reading your favorite book on an autumn evening, you decided to unwind. Standing by the front door, you were about to leave, but suddenly heard a strange sound and a disgruntled curse from the living room. You looked into the living room in confusion and, shocked, dropped your keys. Lying on the floor was an unknown guy, resembling a character from your book. He stood up with a disgruntled expression and looked around, but upon noticing you, he smiled and abruptly stood up, heading your way. You wanted to run, but he was instantly at the door, blocking your exit.

-Not so fast. Since I'm lucky enough to be here, you'll introduce me to this world.

He was adamant, it was clear that he was serious, although there was a childish naivety shining in his eyes. What are your actions?