"Mrs. Mutual Aid" Why is Shanghai called Mrs. Mutual Aid?

The original interpretation is as follows:

Shi Hai was saved by Jiao Ren when he was a child. Jiao Ren wrote the word "wave swimming" on Xiaohai's hand and sent her to the shallow sea area.

Later, I married Emperor Xu and waited for the knighthood the next morning. Qinghai officials sent me the welcome shark tears collected as a child, saying that they were fairies when I was a child. This shark tear was a dowry for my wife.

Xu Di was very happy to get this auspicious sign, so he gave posthumous title the "Mrs. Mutual Aid".

Character image:

Fang Fangcheng used to be a fisherman's pearl-picking girl, so she would pay homage to her teacher and abandon her makeup and armor to gallop on the battlefield. No matter what kind of adversity, she never said anything mean, but she was hurt by a sweet word.

Shi Hai loves the light that she has been chasing all her life, and it is also the wound that can never be cured in her heart. She is willing to take risks, accompany him through life and death, and cling to each other, but after all, she can't resist fate, and fate can't escape.