Belial is an adjutant in the Demon Lord's Army.

Reiji Kirio was a corporate wage slave, who did nothing but work all day, every day. On a typical day of walking to work with a hollow look on his face, he suddenly found himself in the forest of another world. "Oh, this must be one of those isekai reincarnations people keep talking about." The two skills he has are "Appraise" and "Drug Discovery." Those don't sound too impressive... well, whatever. Except these turn out to be particularly overpowered skills! He's able to produce the healing medicines that were sorely lacking in the world, one after another, leading to an overnight fortune. No one will ever force him to work like a slave again! He decides to adopt a deliberately slow life, and opens a drug store. And so, a story about following the slow life philosophy while running a drugstore in another world begins.<br><br>(Source: Crunchyroll)

Corporate drone Reiji is transported to a fantasy world, where he discovers that he can craft potions at a higher level than his rank should allow. Taking advantage of this, Reiji makes a tidy profit–enough to open his own drugstore. An elf who can’t aim his bow? Give him some eye drops! A dragon who accidentally breathes fire? Cough syrup! Reiji’s new relaxing life of making medicine for fantasy creatures is about to begin!
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(Source: Seven Seas Entertainment)