Synopsis

A clandestine group had set their sights on Yin, and now she and her companions were forced into a desperate struggle for survival. The situation grew dire when Yin vanished. Hei and Moa were left with the daunting task of finding her before their pursuers could. Their search took an unexpected turn when Yin's former piano teacher intervened, enlisting Gai and Kiko to aid in the quest. A frantic race against time began, each determined to be the first to locate the missing woman.