Here's an updated version of the conversation:
Evelyn: Aaya, what's wrong? You look like you're about to cry.
Aaya: (looking at Evelyn's brother with tears in her eyes) There are monsters everywhere, Evelyn. Even in this palace. But you can't see them.
Evelyn: But Aaya, you told me monsters only exist in stories.
Aaya: (glancing at Evelyn's brother) You're so naive, Evelyn. You believe everything people tell you. Look around you. You might find monsters standing right next to you.
Evelyn's Brother: (smirking) That's enough, Aaya. Princess, you know monsters exist, so don't even think about leaving the palace.
Evelyn: (confused) What's going on? Why does everyone act so strangely around me?
Evelyn's Father: (distracting Evelyn) Now, now, my baby. What would you like for your birthday gift?
Evelyn: (excited) Father, I want that rectangular thing I saw in my brother's palace. It's black and big. (spreads arms wide)
Evelyn's Father: (laughing) Ah, you mean a TV? Okay, I'll have one installed in your palace. But remember, everything on TV is fake.
Time skip...
Evelyn: (watching TV) Wow, there are so many trees and people wearing different clothes. I want to go there someday.
Aaya: (entering the room with a gloomy face) Princess, you want to go outside, don't you?
Evelyn: (excited) Yes, I do! I want to see the monsters.
Aaya: (serious) Princess, the monsters you're talking about are inside this palace. That's why I'm trying to save you. Come with me, and I'll take you outside.
Evelyn: (hugging Aaya) Thank you, Aaya! Let's go now!
Time skip 2 hours...
Evelyn: (looking around in awe) Wow, this is amazing! What are those things moving so fast?
Aaya: (smiling) Those are cars and buses, Evelyn. People use them to travel.
Evelyn: (excited) Can we ride on one?
Aaya: (nodding) Okay, come on.
(Aaya helps Evelyn into a car and then turns to her with a serious expression)
Aaya: (softly) Be careful, Evelyn. Take care of yourself. Good luck, Princess.