How to Open a Mecha Without Money: Steel Account Book

Intern Qin Ze died suddenly while working overtime. When he opened his eyes, he came to a parallel world and became an "illegal existence" with sky-high debts. Being treated as "consumables" and thrown into a mining star with an extremely high mortality rate, he was left to die. In a desperate situation, he accidentally bound an even more expensive thing - the ultimate AI of human civilization [Candle Dragon]. "Help you? Okay, give me the money first." When others use mechas to crush the enemy, Qin Ze can only calculate the cost of each shell first. While his opponent was showing off his luxurious equipment, he was squatting in the scrap pile searching for parts, trying to spend every penny on the blade. Everyone laughed at him as a poor man and a joke that risked his life. Until that day, the alien civilization fleet came to the city, and the entire civilization was in danger. Qin Ze drove the mecha that he had saved through careful planning and frugality, and slowly moved out of the queue to block the alien civilization fleet. His calm voice came from the communication channel: "Everyone, please settle the bill. No credit will be given for saving the world."