Zhong Lexi saves Ye Bai, who takes a beating without fighting back, but he asks for two hundred million to kill someone for her to repay the favor. She originally wanted to make this poor boy fall in love with her and then ruthlessly abandon him, but in test after test, she fell in love first. Until the threat of murder approached, she discovered that her little Bai turned out to be the White Impermanence of a millennium-old killer organization! Elite family power struggles, organization internal fights, she wants to monopolize him, he wants to protect her. From tit-for-tat to depending on each other for life and death, two people who don't understand love become each other's reliance in the blade light and fireworks.