High-Dimensional Invasion, But I Protect Civilization with a Junkyard

Orphaned and living alone, Fu Liu barely scrapes by on the meager income from her parents' scrap yard. Life was supposed to continue quietly like this—until she dug out a broken watch from the trash. Before she could toss it away, it clamped tightly around her wrist and refused to come off. From that moment, her life took a bizarre turn. Picking up what seemed like model kits, Gundams, or machines, the watch informed her they were actually starships, mechas, and spacecraft. Fu Liu: "Your so-called starships, mechas, and spacecraft are all 440x80mm, huh?" Watch: 【They are not yet unlocked, miss】 Fu Liu: "Where are you from?" Watch: 【This AI originates from Earth·Huaxia, m...