Cactus on 23 July 2009
The ending seriously hinted that he died, or that he will die very soon after. The part where he is narrating, at least to me, certainly sounds like a farewell to the world:
"I'm so happy I met everyone... I wish we could've gone on more adventures.
But I guess we all have to say goodbye someday."
"Everyone... Thank you. Farewell."
"My memories will be part of the sky..."
