The story follows a group of samurai attempting to defend Japan from the first Mongol invasion in 1274.

Once upon a time, there was a witch named Elaina. Inspired by her favorite book, Elaina ventures out to see the world she's read so much about. Like a leaf on the wind, she travels from one country to another, looking to sate her inquisitiveness and searching for new experiences. Exploration and curiosity drive her journey. She's confronted by humanity in all its forms, whether strange, bizarre, or emotional and with each meeting, Elaina would become a small part of their story, and her own world would get a little bit bigger.

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! And so, a story about following the slow life philosophy while running a drugstore in another world begins.