Potion Kouji ni Sasensareta Ore Renkinjutsushi, Bishoujo ni Rachisare Ikoku de Itsunomanika Eiyuu ni naru

Getting demoted from a Royal Magician into a Potion Factory, Yulius led a hopeless life. Until one day elf sisters suddenly kidnap him into a desert country, Shambala… Hearing pleas for rescue from the Beauties, he creates an experimental squishy potion, an elixir! Dungeon exploration, waterway construction, landscape restoration etc… Splendidly switching from a genius Magician into the strongest Alchemist and saving Shambala, what future awaits Yulius!?