What witch? The Deadly Pharmacist!

[Breaking Bad in Another World] After years of wandering in this world, Leon realized that some paths, once embarked upon, have no turning back; the staircases paved with countless bones lead only to the throne or the grave. Due to the explicit prohibition of the Imperial Church, the production and smuggling of magic essence extracted from monsters has become a dangerous yet highly profitable industry in this world. Thus, he started as an unknown nobody, training witches wanted by the Church to become his monster breeders and apothecaries, building a smuggling empire spanning the continent! Now, he is the most powerful lord in the Empire, the newly appointed cardinal of the Church… but he still remembers when the gears of fate first turned, he was just Leon Set, a heretic inquisitor lurking in the lower levels of the Church.