The old apartment in the dusk hides sobs that should not exist. Lin Xiao accidentally bumped into the lost ghost girl. Just as he was about to lend a helping hand, a black-robed underworld messenger came out of the sky. The sentence "I have been observing you these years" reveals his unusual life experience. He who can see ghosts, what secrets does he hide? When the curtain between Yin and Yang is torn apart, how will he be involved in the turmoil of the underworld?
