She is the top agent who makes the world fearful - Youyue, she grew up in the Amazon, a tropical rainforest full of ferocious beasts. She performs the world's top secret missions - never fails. When she travels through various countries, she walks freely and calmly in the hail of bullets and possesses unique skills. When family affection turns into a sharp blade and stabs hard into her heart, the top agent who once made the world fearful dies in a foreign country. He died with hatred in the rainy night in France, and when he opened his eyes again, the situation changed! Pay back everything you owe me! She will eventually make the world tremble!