In the Youyun Continent with thousands of years of history, a mysterious man manipulates the grievances of the five major countries, and a shocking revenge plan is secretly carried out. The princess has an unrequited love for the cold killer, and the brothers turn against each other because of love. He returned as promised, but she betrayed him. If she doesn't save him, she can always be by his side, but because she loves him, she will lose him forever. God makes things difficult for you, you can't love me. I know that the forbidden sea will be very dangerous, but I can't stop thinking about you. Give up your hands and change your wings. Thousands of years later, I will turn into a legend to protect you! This is a heart-stirring legend of love and hate...