Forced into Marriage at the Beginning: Activate the Apocalyptic Land Reclamation System

[The end of the world + no cp + invincible system + time travel + management] Li Mengyu didn't expect that her family would marry her to a fool. Only now did she understand that no one in the family really cared about her. System: The host's survival consciousness is weak, and the system is automatically activated. Welcome to the apocalypse, where you will become a pioneer. . . The supermarket is unlocked. . . Please operate carefully and use points to develop more land and unlock more industries. . . Please note that this system will be closed two days a week, at which time you will return to your original world. . . (Please be patient and read the first three chapters.)