Nana Took Life as a Betrothal

The world has changed, and the usual rules of survival still do not apply to the present. Everyone in the world has been divided into different areas and gathered together. Everyone's living environment is very comfortable, but if you leave the buildings that you don't know where they come from, you will be in danger at any time. There are people who are content with the situation, content with the status quo, not thinking about the future, and living in panic. There is also such a kind of people who walk out of the safe house to find the face of the new world. . . [Na Na Na, where have you been? You don't even want to coax me anymore] [Luoluo, Luoluo, Nu, I give you my heart] [1v1, the relationship is slow and the female protagonist is super strong and the male protagonist is super safe] Please collect it! ! W(ﾟДﾟ)w