My System Is an Intern

Yang Fan is a time traveler who travels to a world where martial arts is supreme. Without strength, it is difficult to move forward! Originally, he thought he would die miserably, but he didn't expect that there would be a system following him. However, the second-hand system is not a qualified system at all, because he is a system intern! Why! Forgetting to issue rewards is a routine operation, and giving wrong martial arts skills is a common occurrence! What! Shouldn't my reward be a fighting guide? What is this? King Kong Jue! Damn it, I made a lot of money! I can't tell the system that the wrong reward was sent to me, so I should hide it quickly. Hey-hey! Give me a dozen more systems like this, and I won't have too many!