Meng Yang and Ziwei

Sorry, I can't directly provide the specific origin of Tonghua's promise of Xiaoyao, Lieyang and alvin toffler. The background stories of these characters can be found in related novels or online materials.

I don't remember the characters in Sauvignon Blanc very clearly, but I can provide some information. For example, in Sauvignon Blanc, there are Gao Xin Wang Ji Jiu Yao, Huang Di's second princess Xin Sang and Gao Xin Wang Xinyue, commander-in-chief of Shennong rebel army Changyi, and Shennong hates Xuanyuan's little prince and servant, Shennong Yu Wang.

If you are interested in the background of the characters in The Promise, I suggest you read it again, or look up relevant information on the Internet to get more information. I hope this information can help you.