What does Wei Zi mean by Daming Lake?

Xia borrowed Daming Lake to refer to the classic lines spoken to the emperor in Princess Zhu Huan.

Xia is a character in the novel Princess Zhu Huan, played by, and this classic line is also from the TV series Princess Zhu Huan, which is broadcast regularly every summer vacation. Xia Qin, chess, calligraphy and painting are all proficient, gentle, beautiful and moving. He is a folk couple in Qianlong, and he had a bittersweet marriage with Qianlong.

Eighteen years ago, I met my mother Xia in Daming Lake, Jinan, and they fell in love. However, due to political relations, Gan Long left Yu He and promised that she would come back for her, but Yu He has Gan Long's flesh and blood.

But Gan Long never came back. Yu He was disappointed, but she waited all her life. On her deathbed, she told her daughter Wei Zi about it and asked her to go to Beijing to find her father Gan Long.

After that, the clever and lovely swallow and the gentle Wei Zi met by chance. The swallow promised to take the keepsake left by Wei Zi's mother to see the emperor and help the emperor and Wei Zi get to know each other.

But by chance, the emperor mistakenly thought that the swallow was born with Xia. In order to make amends to Wei Zi, the swallow took Wei Zi into the palace, hoping to find a suitable opportunity to clarify this matter to the emperor.

After learning the truth, the emperor was furious and doubted Wei Zi's identity. Wei Zi said, "Do you remember Xia Yuhe by the Daming Lake, your Majesty?" To identify himself.