She is the freest swallow in the Forbidden City, flying over glazed rooftops and through the storms of the martial world, yet never able to fly away from the scar in her heart.
Yongqi's departure once again takes away her last hope. After her heart dies, Xiaoyanzi becomes the Swallow Heroine and roams the world.
Until she reunites with Ertai on the Mongolian grasslands.
The second young master of the Fu family, who used to stand forever behind Yongqi, is now Princess Saiya's consort. But the eyes he turns toward her are still just as they used to be, so gentle they make her heart flutter. Saiya discovers his secret and lets him go with pride. Xiaoyanzi, however, is afraid, and she runs away. Ertai searches the grasslands for her like a madman, and when he finds her, she has already fallen ill.
To help her escape her suitors, and for the sake of his own heart, he makes an absurd proposal: a fake marriage.
A marriage contract turns from false to real. When he is injured, she guards him day and night. When he goes to war, she secretly helps him. From the grasslands to Yunnan, from a fake marriage to true love, they finally stop missing each other.
The swallow flies over a thousand mountains and ten thousand rivers, and at last comes to rest in Ertai's heart.
