Xi Shi, who is known as the crown of China's four beauties and the origin of China's undercover agents, has lived in the underworld for more than two thousand years since she was drowned by King Gou Jian of Yue. She was a little bored and annoyed. One day, she whimsically proposed to the Lord of Hell that she would return to the human world. The Lord of Hell actually approved her absurd request, but only allowed her to return to the human world for three days. Xi Shi finally returned to the world and her hometown. What bizarre twists and turns and thrills had she experienced in these three days?