Thousands of Years of Love.

Despite being enemies from different realms, Feng Ruoyao, the powerful demon queen falls in love with Mo Chenyuan, an immortal lord, and forcibly marries him. Mo Chenyuan, secretly in love with her, uses his injury as a reason to be captured and taken to the demon realm. Despite initial struggles, their mutual love and devotion help them overcome all obstacles, uniting the two realms and solidifying their bond.