In a universe governed by the Grand Structure, where fate is predetermined and the Imperial Universal System Alliance (IUSA) enforces cosmic order, Lucien, a gifted Cantomancer, defies destiny by composing a melody that allows him to traverse time. But his rebellion comes at a cost-his actions fracture reality, pulling his daughters, Jenny and Joaney, into a past ravaged by war and a looming viral outbreak engineered by a scientist seeking absolute control. As Sheeyah, the Guardian of Time, reveals the truth, Lucien learns that his power extends beyond music-he can summon the forms of the Zodiac, transforming himself into their likeness. Yet even with such abilities, he cannot escape fate. To prevent the collapse of existence, he must embrace his role, raise his children to be strong, and prepare them for the battle ahead. But Lucien has never been one to follow the path laid before him-and the question remains: will he accept his destiny, or condemn the world to ruin?