Call of Darkness (RoTs)

The Call of Darkness was the first season in the Road of Twilight series and centers around the awakening wielders of each specific Linchpin Keyblade, it also sets down the foundation of a struggle between Darkness and Light that is feared to erupt into a new Keyblade War while a group of Keybladers accept the call of Darkness to find mastery in both primary elements, to walk along the Road of Twilight to keep peace between Light and Dark for the good of the Universe and natural order.

Trivia

 * The "Call of Darkness" literally means the "pull of that very same element", following the philosophy that Riku discovered in Dream Drop Distance, relative that a true Keyblade Master needs to be one with both his light and his darkness.