The male and female protagonists are 1V1, plus many secondary CPs.
The female protagonist has no love-mindedness, while the male protagonist actively interacts with her and cares about his wife.
The heroine Nan Yi is a person from the 21st century. She joins the Messenger Project and wakes up a thousand years in the future. At that time, mankind had perished and started anew, and science and social systems probably developed to the Sui and Tang Dynasties.
The male protagonist Shitou is a minor character in the mysterious organization Mingtang. After meeting the female protagonist, he decided to quit the organization and travel with the female protagonist.
The heroine originally just wanted to hang out, but she and the hero met many people of this era together. In the process of helping her friends, she promoted the development of the times and discovered the history of the reincarnation of human civilization.
Intention: As long as there are people, there is civilization, and we can continue to move forward.