I Cultivate Immortality by Killing Monsters

Jiang Yifan encounters a mysterious old man by chance. Young man, don't let your imagination run wild, I'll give you a good fortune. You're such a bad old man. How can I be so excited about winning the lottery? What a cheating system. I have all the magic weapons that were promised, and you only gave me a wooden sword. It seems that I can only rely on myself to make alchemy, right? Go to the pressure cooker, right? Printing with movable type and refining weapons, right? Get on the lathe, Demon Lord, right? I want you to kneel down and call daddy, I am the final boss. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.