A Thin Line (by Ash-GreninjaGirl)

Greninja and Hawlucha have never gotten along. Their fights are a constant of everyday life, so much so that no one really thinks too much of it anymore. But when a freak accident leaves Greninja in critical condition, Hawlucha is forced to reconsider his opinion on his rival and realizes that, maybe, not having him around wouldn't be the dream come true he always thought.