Orphaned stable boy, Finnigan “Finn” O'Malley, accidentally breaks a vial of experimental elixir, unknowingly absorbing twelve years of life force! Discovering he can now manipulate life essence from plants and animals, Finn seeks refuge within the secluded Order of the Green Thumb, a monastery dedicated to herbalism. There, as a novice, he cultivates herbs, unknowingly siphoning their vitality to extend his lifespan and enhance his skills. From humble gardening techniques, Finn's abilities evolve, leading him to unlock ancient alchemical secrets and manipulate reality itself. As centuries pass, whispers of a benevolent figure performing miracles spread throughout the mortal realm. Finn, now known as the enigmatic "Green Sage," dedicates his extended life to aiding humanity, unknowingly accumulating immense karmic merit. One day, a celestial envoy, Archangel Michael, descends, inviting Finn to ascend to Heaven. The offer? To become the Celestial Groom, tending to the mythical steeds of the Valkyries. Finn, once a humble stable boy, is now faced with the ultimate divine irony: trading his newfound godlike powers for… horse duty.

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