After the events of 'Farewell Calm Days', Knives Leracko is plunged under the influence of the demon Audacious. With his eyes set on world domination, Three Neo Yaiba members must join forces to not only stop Knives Leracko, viewed as the hero who stopped the Yaiba, but also the demon Audacious who has plans of his own for our fragile planet. With the help of the fallen heroes from around the world, Audacious waits patiently knowing that the only element that spells his doom is already under his command. Is there any stopping this unbeatable tyrant?