Leave the Pieces
South Park: Kyle x Stan, Kenny x Wendy, Butters x Cartman, plus ensemble, 250k words. "Stan and Kyle meet as strangers in their mid-twenties, shocked to encounter someone else who can't remember the first ten years of his life. They form an instant connection, but only one person in South Park remembers them, and Kenny can't explain why they disappeared or why the rest of the town forgot them."