(Lots of sugar, group portrait, no harem, not brainless, lots of foreshadowing, twists and turns)
He is the underworld's Yin Superintendent 417 who has a clear sense of grudges and is decisive in killing. However, he let go of a hell demon due to an accident.
This demon escaped to the human world. In order to let 417 make up for his mistakes, Pluto asked him to arrest him in the human world.
However, there was a pig teammate 416, who mistakenly demoted 417 to the human world and was reincarnated as a human being... He became a criminal policeman and had a beautiful girlfriend.
Despite this, the devil is always with him.
But that's not a problem! 416 Fought side by side with him in the human world, and at the same time envied him: "If I had known he was so happy, I would have been reincarnated as a human being!"
Slowly, 416 stopped being envious, because...
