Mochizuki Hanyu, the Sansect spirit exterminator, unfortunately encountered a young silver-white long-haired spirit exterminator who was killing spirits. He was killed and turned into a ghost. For unknown reasons, the two were forced to sign a Yin-Yang spirit contract and became Yin-Yang spirits. The two went through countless battles and difficulties together, and in the process developed a touching relationship that transcended friendship and life and death, and eventually became irreplaceable people for each other.
However, after experiencing life and death together again and again, the two finally connected and became indispensable to each other.
Concept: The scariest thing is not the ghost, but the human heart. And what you fear the most is facing your heart.