Mitsuha Yamano has lost her family. Grieving, she failed her college entrance exam, and decided to take a break thanks to her inheritance. But during it, she was pushed off a cliff by a band of hoodlums. Instead of dying she found herself in another world thanks to a new power. Since the world is at medieval Europe development level, she decides to use her power to open a shop and earn her retirement money.
Kazuhiro “Kazuhiho” Kitase is a 25 years old salary man with one cheat power he had since he was a kid: being able to leave his job on time and have early sleep to literally live his dreams. In his dreams, he is transported to another world with game mechanics, along with whatever food lies by his bed. Using that, he baits the cute elf girl Mariabelle “Marie” on adventures. But one day, he brought her back to Japan!