An ordinary high school student named Kaede wakes up in an unfamiliar alley. She finds herself in a strange, alien world inhabited by beastmen, elves, and dragons.
Kaede discovers a strange book in her backpack that she's never seen before. It's a magical book that allows her to create potions simply by saying the word "Seisei" (produce)!
For Kaede, stranded in this alien world, the potions she creates are her only means of survival. Hoping to one day return to Japan, the high school student's struggle in this alien world continues.
