After the defeat of Lord Tirek; Twilight, her Brother, shining Armor, and her friends continues to celebrate a new kingdom of friendships' reign. But for somepony, a vengeful troubled pony named Ofnir, he unleashes something beyond evil, and demonic from human world; the legendary Pumpkinhead, the demon of vengeance. As Ofnir releases the demonic spirit of vengeance, he takes blame on Celestia after the defeat of King Sombra, his parents passed away from Sombra's curse of illness. As Ofnir kills bullies he was tormented, Ofnir didn't even realize what will happen; if he continues to kill for revenge, and would cause the death of his love interest, Princess Luna. What will happen if Ofnir continues to unleash the evil monster onto those he care? Will they did in vain? Or will they find a way, to stop that vengeful spirit that Ofnir unleashed