The time traveler Wei Xiu awakened the maintenance system of all things and started by repairing home appliances. By chance, he repaired a tank that the military was unable to do anything about, and thus attracted the attention of senior officials. Since then, he has been pretending to be a pig and eating the tiger, transforming fifth-generation aircraft, upgrading aircraft carriers, developing electromagnetic guns, unlocking black technologies such as stealth materials and industrial aircraft, and protecting the country and the country internationally. Finally, he went into seclusion with his wife and concentrated on scientific research.
This drama is so good,