The custom of the people on the grassland is to worship marriage under the protection of the moon goddess. They pay attention to the marriage of pure blood in the ethnic group. On the day of snatching the baby, Chengji, who is half of the grassland blood, snatched Tana (Pearl)'s purse and expressed his life vows under the moon goddess.
However, the Moon Goddess did not seem to protect their marriage, and things went counterproductive. After Chengji left the grassland, he only left Tana with the words, "Outside the grassland is the sea, and I will wait for you there."
From then on, the two people missed each other in their searches again and again. But when Tana really saw the sea, Chengji faced the most beloved person in his life who he had missed countless times and felt full of regret.
Chengji took Tana back to the grassland, and returned to the Moonlight Clan under the protection of the Moon Goddess. Chengji wanted to reaffirm his vows in this life, but Moon Lake took away the prairie pearl that was under the protection of the Moon Goddess.
