You decide to write a Neil Josten/Andrew Minyard fic where they’re forced to spend the summer working at a tiny bookstore after their team loses a bet.
Neil is convinced Andrew hates him. Andrew insists he hates everyone equally. Somehow, Neil still ends up behind the counter every morning with Andrew’s coffee already waiting for him.
So you tag it with Enemies to Something, Bookstore AU, Forced Proximity, Mutual Pining, Andrew Minyard Has A Soft Spot And Hates It, Neil Josten Is Oblivious, Found Family, and “I Made You Coffee, Don’t Make It Weird”.
And the reason it becomes legendary? The author somehow captures their canon dynamic so perfectly that every tiny act of affection feels like a major confession. By chapter 30, the comment section is treating a shared umbrella like the most romantic scene ever written.