Eternal night train
A hundred years ago, a ghost railway that shuttled between yin and yang quietly appeared in the world. This old-fashioned steam train numbered K0714 was originally an afterlife train that extradited the souls of the dead and safely sent them to the afterlife. It traveled between the human world and the underworld. The train commander sent countless obsessive dead people into reincarnation, maintaining the balance between the two worlds. The black mist disaster that swept the world suddenly came, and the torrential rain tore apart the barriers of time and space, and countless violent and resentful souls invaded the interior of the train with endless violence. The sudden disaster caused the train traveling on the suspended track to suddenly lose control. All the passengers and entourage were killed in this tragic scream and endless unwillingness, all of which were sealed in the carriage. The conductor burned his soul and used the power of his remaining soul to lay a seal, forcibly trapping the raging black fog but failing to completely eradicate it. Since then, the train has been completely separated from the trajectory of the world, trapped in the endless night, repeating the tragedy of the night of the crash day after day. Hundreds of years have passed, and the train has been wandering on the fog-shrouded empty rails all year round, with no starting point and no end. There are countless dead souls trapped in the carriage. Some are wandering in ignorance, and some are infected by the hostility and turn into vicious and resentful spirits. They survive by devouring the breath of living creatures. The trapped soul of the conductor loses his self-awareness and becomes an obsessive puppet who repeats the action of checking tickets and departing the train over and over again. The soul-eating black mist born of the disaster lurks deep in the last carriage of the train, constantly accumulating strength, waiting for an opportunity to break through the seal and return to the world. Travelers who stray into this secret realm will be forcibly pulled into the train and involved in endless reincarnation. Only by breaking through the layers of obsessions, resolving the heart knot of the dead souls, crushing the long-sunken ghost train at the origin of the black mist, and regaining peace.