Thousands of years ago, within the Underworld, twelve Titans together in the womb of Mother Earth witnessed the Prophecy that would decide the succession of the Divine King.
But in the end, driven by a sentient life's curiosity about the future, Cronus, like his own father, inquired about his fate.
Therefore, Laine told him that as life and death exchange places, he would lose what he had gained in the same way he acquired it; the world is like a circle, and this was the ending destined for him.
In the past, Rhea did not understand what this meant, but now she did. She had mastered the method of turning 'death' into 'life', but she still needed one thing to help her turn 'life' into 'death'.
But this was not difficult, because her eldest son, Hades, who wielded Divine Authority over the Underworld, was born from the intertwined powers of the four Primordial Gods, so naturally, his Divine Power also possessed some of their characteristics.