Following his final encounter with the demon king, Deimos. Joshua Von Terra, The disciple of the Mercenary King after finally breaking the curse binding his Aura, gets sent back in time to relive his youth by an unknown force. Now once more thirteen years old, he has to relive the events that led him to exile by the hands of his clan's Overseers. This time, with the assistance of the Crimson Dragon, Joshua will face complex challenges that will push his resolve. He must grow stronger forge new bonds if he desires to stop the deaths of his loved ones.

The land of Seteralia is split between the Zephyr and Terra Clan's one ruled by the Overseers and Roderic Von Terra. The other, by a heartless Matriarch pushing the limits of what Mana can achieve. Alongside them, Fallen Angels, Demons, and other beings of primordial origin attempt to seize control of the world. Being caught in this spiderweb of forces beyond his comprehension, just how will Joshua reach the Zenith