It's weird because I feel like most of the fandom leans into this idea of Kurapika being this tragic, distant figure Leorio has to thaw out. And sure, that's there, but the really memorable fics for me flip that sometimes. They explore how Leorio's own idealism and need to help might be just as isolating in a different way. Kurapika is driven by revenge, which is a clear, destructive path, while Leorio is driven by this almost naive hope to fix things, which can be its own kind of burden. The fics that dig into that tension—where Kurapika's cold practicality clashes with but also maybe secretly relies on Leorio's unwavering warmth—those feel the most true to their canon dynamic, even in AU settings.
I read one recently set after the Succession War arc, where Leorio is trying to hold everything together at the hospital and Kurapika just shows up, physically wrecked and emotionally spent. There was no big romantic declaration; it was all in the quiet, exhausted care. Leorio fussing over injuries while completely ignoring his own burnout, Kurapika silently making tea at 3 AM because he knows Leorio won't sleep. The emotional dynamic wasn't about fixing each other, but about creating a fragile space where both could be broken. That's the core of it for me: a mutual, often unspoken, agreement to be a safe harbor in storms they mostly create for themselves.