Lin Mo, an ordinary delivery boy, is actually a descendant of the ancient "Spirit Master", and has the power of "Shattered Shadow" sealed in his body that can subvert the three realms. The mysterious copper fish he carries with him is the key to unlocking the secrets of his life and the three realms. The seemingly gentle flower shop owner Su Qing beside him turns out to be the "Seal Keeper" who monitors him. It is difficult to distinguish between good and evil.
