Reborn Conceited Son-in-law

The world's top assassin, Night Demon, had failed in his quest. He had been shot through the head, but he was reborn two years ago. His soul had been possessed by his good-for-nothing son-in-law, Liu Chuan.
His wife was the number one police officer of the Criminal Investigation Squad. She was swift, decisive, and valiant.
In the past, Liu Chuan had always been hiding behind her back. He had had enough of eating soft food and getting fed up with rolling his eyes.
Just like tonight's rebirth of a devil, which was still behind her back, but had become her strongest backing and backer …