My Useless Master

What did you say! You want the elixir! Come on, come on, I have the best elixir in the world here, you can reach heaven in one step after taking it, I guarantee it with my character. What? No? Do you want a spiritual weapon? Come on, come on, I have the most powerful artifact in the world here, and the price is guaranteed to be fair... Nothing, nothing! Do you... Do you want the notebook I keep privately? Well... Although I am very reluctant to let go, I will risk my life for my customers! Haha, which one do you want? Uh... If you don't buy anything, you want to become a disciple. OK, I'm going to take on an apprentice to learn skills from me, hahaha! What, you want to become an immortal... Please come back, I'm just a mortal. A good-for-nothing master and a genius apprentice, what kind of sparks can spark between these two extremely different people? Stay tuned for "My Waste Master"