Let Me Renovate Your Model. What the Hell Is This Space Gundam?

[Black technology + rise of great powers + comedy + live broadcast + mecha streaming + no female protagonist] Jiang Chen traveled through a parallel world and inherited a "Ten Thousand Gold Repair Shop" that was heavily in debt. Not only did he awaken the [God-level Magic Modification System], he was also dragged over by his best friend and a shabby retired J-8 fighter. Best friend: "Brother, help me, renovate it and use it as a model. I'll take it to air shows to pick up girls!" Jiang Chen looked at the system prompts and suddenly suffered from occupational disease: "This thrust-to-weight ratio is too low? Change to a controllable nuclear fusion engine!" "The aerodynamic layout is too poor? Directly use liquid deformation metal!" "The fire control system is rubbish? Replace it with quantum brain assistance!" As a result, on the day of the test flight, this "model" pulled onions on dry land, rushed out of the atmosphere at a top speed of Mach 30, cut up an abandoned satellite, and turned into a majestic mecha under the spotlight! The whole network was live-streamed, and the military blocked the scene overnight: "Who calls this renovation? This is the Nantianmen plan exposed!" Yingjiang collapsed: "What does it mean when we say that the atmosphere is involuted and you go directly to the Gundam?" Jiang Chen looked innocent and was invited to drink tea: "Sir, I really just built a plane, how come it became a sacred weapon for the country?" Later, from tractors to land cruisers, to fishing boats to space carriers. Jiang Chen spread his hands: "Actually, I just want to make the repair shop bigger and stronger."