Chu Xiu makes a living as a scavenger on a derelict mining star, yet possesses a mysterious ability to see through the internal structures of machinery. An S-grade mecha crash leads her to unexpectedly encounter the noble orphan Chu Xiu, who shares a striking resemblance to her. To escape starvation, she impersonates the other's identity, takes over the institutional admission qualification, and steps into the Saint Elmo Royal Military Academy that everyone yearns for. From then on, the scavenging girl who used to be reluctant to even afford nutrient fluid transforms into a fresh academy newcomer! While others diligently practice mecha piloting, she stares at parts to study disassembly; while others fight for glory, her mind is filled with rare materials. Relying on her extraordinary mechanical talent and survival rules perfected to the extreme, she stuns the entire audience.