Drugstore in Another World: The Slow Life of a Cheat Pharmacist (Manga) Vol. 6

Reiji and the gang set off for their first-ever group vacation, headed for a peaceful port town that hides an unexpected problem. Someone is hawking a so-called "panacea" wonder drug, but could there truly be such a thing as a medicine that cures everything? Whether it's a miracle or snake oil, Reiji's determined to get to the bottom of it!