No System for Cultivating Immortality? Then Create Your Own!

After transmigrating, he didn't have his own system? So Yi Wulu decided to create one himself. While creating it, he found the progress bar stopped increasing? So Yi Wulu decided to use his experience from Earth and ask his disciple (a graduate student) to help him create it. Thus, the following scenes unfolded—In the eldest disciple's situation: Yi Wulu: "Sigh, if only there were an exchange system, I could directly exchange for any elixirs and medicines, and I wouldn't have to go through all this trouble to refine them anymore." Then the eldest disciple watched as his master, while saying this, kneaded herbs into piles of golden pills. In the second disciple's situation: Yi Wulu: "Sigh, if only there were an AFK system, I could accumulate merit just by idling, and I wouldn't have to worry about not having enough merit anymore." Then the second disciple watched as his master, while saying this, pulled out a thousand or eight hundred merit wheels from behind his back and...