At Changling Ferry, there's a rule: the living pay to cross the river, while the dead need a lantern lit for them.
Nineteen-year-old Xu Pingsheng only wanted to save up enough money to repair his boat. Then one night, a corpse of an immortal who should have been long dead offered to pay him triple the fare for a second crossing.
Only later did he learn that every river in the Nine Continents could lead to another world.
And the so-called righteous immortal sects had always been preventing that world from returning.