With its gorgeous landscape and prosperous people, Great Japan is the envy of all other nations. But a serious threat hovers over the country. Mysterious guardians known as Master Samurai are Great Japan's only defense. At the behest of the student council, young samurai Muneakira Yagyuu arrives at Buou Academic School. Run by the Tokugawa Shogunate, here children of warriors are given aristocratic education required to run the country. The school is led by the student council president Yoshihiko Tokugawa and his sister Sen, who also happens to be Muneakira's childhood friend. Upon arriving at the academy, Muneakira finds himself in the midst of a terrible fight. During the chaos, the sky fills with a peculiar white light and a mysterious girl named Juubei Yagyuu appears and suddenly kisses Muneakira. With his kiss, she awakens an unknown power that protects them. Just who is this girl, and where did she come from? Muneakira finds himself entangled in the fate of the country and a threat that will shake Great Japan to its core. He must learn the secret behind the Master Samurai and the kiss that awakened Juubei's power in order to protect his country.

Nina, thinking it was a lolly, swallows an object called "Crystal Pearl". But the candy turns out to be a test for the magicians. To retrieve the crystal, a special medicine has to be made so now Zero and Ichii, the magicians, have to protect her from others while waiting for the medicine to be completed.

New shoujo manga artist Nana Futami works hard every day while being supported by Kaede Satou, her female editor who is older than her, and Mizuki Hazama, her assistant. According to the girl herself, she sometimes drums up intense daydream delusions of occupational illness! A working girls comedy set in the entertainment industry, brought to you by an author who always draws various girls.

Despite completing all the tasks given to them, Ainz Ooal Gown, Tanya Degurechaff, Kazuma Satou, Subaru Natsuki, and the other members of Class 2 are surprised to find out that their role as students is far from over. With no means of returning home, the class of eccentric personalities is still mysteriously stuck in the unfamiliar world. Although, as they are becoming quite fond of each other, spending more time together does not sound that bad. With the unexpected arrival of new transfer students, the comedic antics of our beloved characters continue to grow. Thus, their bizarre yet nonchalant school life continues.