I thought of dis after looking at memes .___.

Mephisto: You're a demon, the son of Satan even. Why would you want to save Assiah?

Rin: Because I live in Assiah you moron!

Mephisto: Then why not live in Gehenna like other demons?

Rin: Because Gehenna's a SHITHOLE and you know it! That's why you choose to live here! That's why any demon comes to Assiah.
Gehenna's dark and smelly and full of FREAKSHOWS LIKE YOU!