Drugstore in Another World: The Slow Life of a Cheat Pharmacist (Manga) Vol. 7

Whether it's a personal problem or a cold going around town, there's almost nothing Reiji's medicine can't fix. With punishing summer heat setting in, everyone's feeling a bit under the weather. Reiji decides that he knows just the pick-me-up to lift everyone's spirits, but it might wind up being just a little too effective. In fact, Reiji's medicine is so fantastic that even a certain evil overlord is starting to take an interest...!