Everything had returned to normal a few months later.
Rin and Yukio were both healed and ready to fight, however Rin has to wear an eye patch due to his lost eye. Bon had chocked Rin again for worrying him and Shiemi had scolded both of them. Mephisto was charged with house arrest (or in his case office arrest) for letting a demon king stay in True Cross Academy and hurt exorcists. Yukio went back to teaching his classes without a demon destroying it.
Mephisto had sent Amaimon back to Gehenna. Amaimon had argued and complained about it being boring there and fun over here in Assiah, but Mephisto couldn't afford for Amaimon to hurt his exorcists again. Very reluctantly, Amaimon disappeared to Gehenna and hasn't returned yet.
Rin had asked Shiemi out surprisingly. Shiemi said yes happily and they've been together for 3 months. Yukio is of course jealous, but he supports Shiemi's decision.
Rin still feels sad and hurt whenever the topic of Amaimon comes up. He admits that he loved the demon king, and still does even with Shiemi around. Rin hopes to see Amaimon again someday without all the tension and rivalries around.
After all, the king of Earth still has a lot of explaining to do.
You stupid broccoli head.. You never told me what triggered you to start wanting to be stronger. You never told me anything about your past or why your chest hurt whenever the topic about me came up. I still don't know anything about you, and now that all of this is over, I'd like to know.
You are so full of mysteries Amaimon...
I like that.
I still prefer Yukio to be with Shiemi but, whatever. It's all for the story. Anyways, sorry for the crappy ending. I hope you enjoyed the story overall though!
Song Dedication- Aha! by Imogen Heep (I think that's how you spell it...)
~Jay