I Don't Want To Say Goodbye || Originalshipping

(Also cross-posted on Fanfic.net and Archive of Our Own!)
CONTAINS SPOILERS FOR THE ENDING OF PMD EXPLORERS OF TIME/DARKNESS/SKY

"We did it Red. We're almost at the top of Temporal Tower. I can feel it." The Eevee turned around to meet the Pikachu's eyes. Composed and determined. Ready for the inevitable.

'Let's save the world from the planet's paralysis, Blue.' Red thinks. 'Together.'

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After several years of living on Mt. Silver, Red is mysteriously transformed into a Pikachu and sent to a world inhabited with only Pokémon. Washed up on a beach, he meets Blue, an Eevee who bears a striking resemblance to his once best friend and now rival in the human world. On their last journey together they must use everything they've learned as explorers to defeat Primal Dialga and prevent the planet's paralysis. And come to terms with their feelings for each other. That too.