La película se sitúa varios años después del final de la guerra, ya que el mundo se está volviendo cada vez más pacífico. Un día, Violet Evergarden encuentra cierta carta.
The new enemies, Nahane and Ohanefu, along with the mysterious new Giant Monstrous Beings appear from space to take over the Earth! Holding the key to these events is Shinkalion ALFA-X, which was secretly developed by the Ultra Evolution Institute...!? For Hayato and Team Shinkalion, who had been living in peace, the battle begins again.
