The story centers around Akihisa Yoshii, the "baka" of the title. His academy rigidly divides up the student body into classes based on the results of tests. The prodigies are in the A class with reclining seats complete with air conditioning, but Akihisa is in F class, the lowest rung of the school ladder which is furnished only with low, decrepit tables and worn-out straw tatami mats. A girl named Mizuki Himeji is actually one of the smartest girls in Akihisa's sophomore year, but she had a fever on test day and was pigeonholed into the F class. Besides Mizuki (who Akihisa secretly adores), the F class also has Yuuji Sakamoto, the class president who has been Akihisa's friend and partner-in-crime since the freshman year. The school happens to have developed experiments to summon fantasy creatures, and Akihisa decides to rally F class to take on the higher-tiered classes and seize their perks. The F class uses the summoned creatures in an all-out battle for school supremacy.
This is a story that revolves around certain students and one hobby. Amano Keita is our lonely protagonist who has a passion for gaming and is friends with Uehara Tasuku, who is secretly a fellow gamer and is someone who believes his life is perfect. We also have Karen Tendou, the club president of the video games club and Chiaki Hoshinomori, who constantly bickers with Keita. This is a story filled with a non-stop sequence of comedy scenes and misunderstandings. Our chaotic romantic comedy now begins!