Man, the Genshin fandom latched onto Keqing and Aether so fast after her release, and I think it's because writers found this perfect template for emotional complexity. They're both workaholics in totally opposite ways—she's all about mortal ambition and building Liyue's future, he's this timeless traveler with centuries of weight on his shoulders. Good fics don't just throw them together; they build the bond through shared exhaustion. There's a quiet understanding when they're the last ones at the Jade Chamber after midnight, both too driven to rest, but for different reasons.
I've seen this one story where Keqing breaks down over a failed project, not because she's weak, but because her human lifespan means every setback feels monumental. Aether just sits with her, and his perspective as someone who's watched civilizations rise and fall lets him offer comfort without diminishing her passion. That's the core thing—their bond isn't about fixing each other, but about providing a unique anchor. He grounds her intensity in a broader context, she reminds him that mortal struggles have profound meaning. The tension between eternity and transience gets explored through stolen moments, not grand declarations.
You get a lot of fics where they communicate more through actions than words, which feels true to both characters. Aether might bring her violetgrass when she's overworking, a small gesture that shows he pays attention. Keqing might research ancient ruins not for her job, but to better understand his world. It's that mutual, unspoken respect evolving into something deeper that gets me every time.