Fics like The True King of Ooo

Finn had lived out his entire life and was ready to pass on. He had seen it all and been there and done that. While he had many great memories, he also had many regrets, each one bigger than the last. If only he can go back in time and fix things, but time is immovable… At least that's what he thought at first.

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  4. We Regret to Inform you- by BarbarianBeauty (Adventure Time: Fionna and Cake (Cartoon 2023), Adventure Time (Cartoon 2010))
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  6. Bestiality/Pokephilia Prompt fic by Friskriel15 (Original Work, Pocket Monsters | Pokemon - All Media Types, more)
  7. Guilt Trip by sldlovestv18 (Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023))
  8. Part of the Madness by RedFeatheredReptile (Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023))
  9. Original Flavor by PenNameSmith (Adventure Time: Fionna and Cake (Cartoon 2023), Adventure Time (Cartoon 2010))
  10. Embers by EverlastingMoonlight02 (Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023))
  11. Prismo's Theater by Najee30 (Adventure Time (Cartoon 2010))
  12. Winter King by ChesnokOf (Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023))
  13. death of the phone call by hereforthehurts (Adventure Time: Fionna and Cake (Cartoon 2023), Adventure Time (Cartoon 2010))
  14. Interstellar Molecular Cloud by megapidgeots (Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023))
  15. Keep Yourself AU (now with less spice) by blenselche (Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023))
  16. Apocalypse Wow by Infinity_Pain (Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023))
  17. "Out Of Season": a Winter King AU by LlamaFlower (Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023))
  18. Living with a human by RaggedyPina (Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023))
  19. Hailstone by Symto (Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023))
  20. Discoveries of a Bug by SinnerDinner (Adventure Time: Fionna and Cake (Cartoon 2023), Adventure Time (Cartoon 2010))