In Eos, Noctis is presumably riding in the back seat of the Regalia when he is engulfed in white light, finding himself transported to a city that looked like Insomnia and fell asleep. But then he heard and got awoken by an unknown voices.
?(Girls): Hello, can you wake up?!
Noctis: (yawns) Oh yeah... I'm getting up.
He then got surprised by the three strange girls, and starts looking around that he's not in Eos.
?(Pink): No need to be surprised, Mister.
?(Blue): What are you doing sleeping outside of Townsville hall?
Noctis: Who are you girls!?
?: I'm Blossom!
?: I'm Buttercup!
?: And I'm Bubbles!
Girls: And we're The Powerpuff Girls!
Buttercup: What's your name?
Noctis: I'm Noctis. Noctis Lucis Caelum.
Noctis: Oh. uh... That reminds me that it's the third time that I was transported to this world.
Buttercup: What are you so nervous about?
Noctis: Uh... Back in my world, my friend got obsessed with the three of you girls.
Bubbles: And who is this friend of yours?
Noctis: His name is Prompto Argentum, but it's a long story.
Blossom: Well we'll have to talk with the Professor.
Noctis: Alright.
The Girls flew up to the sky much to Noctis' surprise, he then summons his sword to warp strike to the Utonium residence as fast as he can, but then the Girls are surprised because of this.
Bubbles: Wow Noctis! How did you use a sword to warp like that!?
Noctis: Back in my world, I called it the power of Lucis.
Girls: WOW!