I Am Proficient in Laxatives at the Beginning, and the Copy Allows Me to Kill Everyone

In a world where everyone changes jobs, Zhang Xiaobei awakened to the most useless profession of pharmacist, and was also proficient in laxatives. Just when he was about to accept his fate, he suddenly activated the god-level career enhancement system. From then on, Zhang Xiaobei's skill tree became more and more crooked, and he used more and more tricks to deceive people. In addition to laxatives, anesthetics, hallucinogens, sleeping pills, sex drugs, and even surgery to enlarge or reduce local organs. Stunning Succubus: Damn it, Zhang Xiaobei, you actually used the breast reduction technique on me. I'm a succubus. Midnight Lover: It's just your breasts that have become smaller, but mine has become smaller~. Forget it, let's move bricks. Dr. Mecha: That damn pharmacist, he told me that gunpowder is medicine. Dungeon monsters: Strongly protest Zhang Xiaobei's behavior of polluting the environment in the dungeon. He is not here to kill monsters, he is here to commit genocide. Zhang Xiaobei: I am so kind. As a pharmacist, I have never made poison. Villains: Please make poison and give us a happy time. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.