Chiharu Kashima, captain of the Wizard Bureau's Crisis Countermeasures Division, is among a handful of people who can use magic. While frequenting his favorite bar, he is approached by a friendly man named Toyohi Utsumi. Having always dreamt of being a wizard, Toyohi is enthralled by the idea of meeting one. Much to the young Captain's surprise, Toyohi confesses that he has fallen in love with Kashima. While little time has passed, the two begin to spend more time together. Not all is well, however, as Kashima fears that magic is all that he has and Toyohi is only in love with Kashima the Wizard.

Megumin is a young and passionate wizard from the Crimson Demon Village, a remote community of mages with red eyes and a flair for the dramatic. She has devoted her life to mastering explosion magic, a powerful but impractical spell that leaves her drained of mana and unable to move for the rest of the day. Regardless, she refuses to learn any other skills. Along with her childhood friend and self-proclaimed rival, Yunyun, Megumin enrolls in the Red Prison: a prestigious academy for Crimson Demon magic users. There, she learns more about the secrets and history of her clan, as well as the threats and challenges they must face. As she polishes her power at the Red Prison with the help of her loyal familiar Chomusuke and her adorable little sister Komekko, Megumin aims to become the greatest explosion wizard of all time!

The kitten from Yasuji Mori's earlier Koneko no Rakugaki returns, this time putting his talents toward directing a samurai film starring his mouse friends.

The lives of high school freshmen Haruki Mishima and Towa Honda revolve around studying, clubs, and girls. Amid their hectic routines, romance is certainly budding for the two best friends. Since childhood, Haruki has been pining over Miharu Mashiki, and a chance encounter at the convenience store reignites his feelings. As for Towa, the class representative Mami Mihashi has caught his eye; but unfortunately for him, his affections are not reciprocated. While Haruki's more reserved approach to pursuing Miharu contrasts Towa's persistence with Mami, love seems to be elusive for both. As the months fly by, only time will tell if romance is in the cards for the duo.