The storyline mainly revolves around three female high school students with different personalities and cheap food. JK - High school girl - B-level gourmet food with super simple recipes! That is "JK rice!". Rina, Ryoka, and Ruriko are all second-year high school classmates.

During the breaks when studying for exams, "JK rice!" appears every time. If you watch the animation, you will understand how to do it. Ingredients that can be obtained anywhere, simple recipes that everyone can imitate, and dark dishes that you don’t even want to make without even realizing it.