One day, Tsuyoshi Mukohda, an extremely ordinary salaryman, gets caught up in a hero summons being performed in another world. At the time of his summoning, he receives a unique skill known as "Online Grocery", that allows him to bring food ingredients and seasonings from his original world. Even though this skill seems plain at first glance, the food he brings into this new world has an absurd effect...!?

After the legendary wolf monster Fenrir got attracted to the delicious smell of Mukohda's food and signed the Familiar Contract with him, Mukohda decides to register with the Guild in Fallières his next stop.