You Said I Was Fixing Toys, So Why Are You Building High-Tech Gear?

Lin Feng's repair shop is on the verge of closing when he unexpectedly obtains an overpowered Synthesis System.

He only wanted to make a quiet fortune, but when he casually fixed a toy, it synthesized into technology that was generations ahead of its time.

His mother-in-law, Gao Huizhi, nags him every day to find a proper job, until she discovers that her daughters are driving antigravity supercars.

With agents from countries around the world lurking near the shop, Lin Feng looks at the synthesized weapon that can manipulate causality and falls into deep thought:

“I just wanted to fix things in peace. Why are you forcing me to become the mastermind behind the scenes?”