In the novel, the female protagonist was a demon princess in her previous life, and her father was Nangong Aotian. The male protagonist was the son of the divine realm in her previous life. The female protagonist was a killer or agent in the modern world who met the male protagonist. In modern times, the female protagonist was a special agent or killer. Her mission was to protect the safety of the divine realm. During a mission, she met the male protagonist, the son of the Divine Realm. The male protagonist was a powerful god. He was curious and interested in humans and tried to get close to the female protagonist to understand her identity and secrets. At first, the female protagonist did not know the identity of the male protagonist, but gradually discovered his mystery and strength, and she became interested in him. As the two of them explored and attracted each other, their feelings for each other gradually warmed up. However, the conflict between the divine realm and the demon realm was also increasing day by day. They had to face the contradictions and challenges between each other. In the end, the female and male protagonists decided to save the divine realm and start a soul-stirring battle with mankind. They supported each other in the battle and overcame the difficulties together, finally reaching a win-win outcome.