Haihara Ai has a secret: she has been able to see ghosts since she was a child.
As a ghost, her dead sister accompanied Haihara Ai all the time. Soon after, she met four smart ghost police officers. Through them, Haihara Ai learned many things, such as the secrets that a self-righteous detective kept from her - stories about a squinting tenant and a cafe waiter, etc.
It was originally thought that the dead could not be resurrected, but the black organization seemed to be secretly conducting experiments to change fate against the will of heaven, trying to break through the boundary between life and death that was not allowed to be touched at will.
Before the situation becomes irreversible, Haihara Ai and the ghost comrades around her are working hard.
Motto: Death is not the end