The gold medal demon hunter Li Yue'e and the demon king's adopted son Cheng Jichang got married by chance, and secretly fell in love with each other during their long-term relationship. However, the two gradually became close to each other, but they were at war with each other due to the feud between the human and demon clans.A life-long feud and a fateful battle, the love between Li Yue'e and Cheng Jichang was small but firm against the backdrop of the times. In the end, the two resolved their misunderstanding and worked hand in hand for peace between humans and monsters.