Shiki: (nods) Kyubey grants wishes in exchange for service as a Magical Girl.
Jo: What's wrong with you Zeke!? Are you OK!?
The Crystal Caverns A bird's gotta sing.Jo: Your blood is blue!?
Shiki: Yeah. And then he rips out your soul harnessing it's latent magic to break the rules of reality.
The Crystal Caverns A bird's gotta sing.Jo: Blood's red isn't it?
Shiki: Yeah... Basically wishing uses the energy already in you to change the world. In the process that gives you magical powers.
The Crystal Caverns A bird's gotta sing.Shiki: Is there anything you want THAT badly?
Jo: So it's supposed to be blue. You'd think all of your skin would be a different color.
The Crystal Caverns A bird's gotta sing.Shiki: Keep in mind... You'll be risking your life for this... And the process can't be reversed....
Jo: Meaning it's not your world at all?
The Crystal Caverns A bird's gotta sing.Jo: Ok...
Shiki: We've lost track of this conversation... I'm tired and confused.
The Crystal Caverns A bird's gotta sing.

Imca : The cute thing?