I've read a lot of these fics over the years, and a clear pattern emerges beyond just the obvious power dynamic. Sure, there's tons of stuff about Whis training Beerus, but the themes dig deeper into the weirdly domestic side of their eternal partnership. You get these slow-burn stories about Whis patiently teaching Beerus things that aren't combat—like cultivating a planet's ecosystem just for a new type of fruit, or the intricate steps of a celestial dance. It's less about romance and more about this profound, ancient understanding. The fridge is always a character, honestly. The act of Whis preparing food while Beerus waits, half-annoyed, half-expectant, becomes a ritual that says everything about their bond. A surprising number of fics explore time—what does immortality mean when you've spent millennia with one person? There's a quiet tragedy sometimes, hidden under the comedy, about being the only two constants in a universe that constantly dies and reboots around them. I read one where Beerus accidentally destroys a civilization Whis was fond of, and the fallout wasn't anger, but this cold, silent disappointment that lasted for centuries. That hurt more than any shouty argument. The best ones make their bickering feel like a love language only they understand.
I'd say the most common theme is caretaking, but with a divine twist. Whis isn't just a servant or guide; he's the one thread keeping the God of Destruction from becoming an unreachable force of pure chaos. And Beerus, in turn, gives Whis a purpose beyond mere observation. They're stuck with each other, and the fics explore all the shades of that—resentment, deep loyalty, comfort, and sometimes something softer growing in the cracks over eons.