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.

Takes place in the year 2200, where Japan has become a land of cats as the human population's birth rate has declined. In this future world, cats can talk, learn, and work. The story follows a high school girl and her argumentative cat.

Kouyou Kotesashi, possesses exceptional massage skills and dreams of becoming a sports doctor. To secure a scholarship to medical school, he enrolls at Seiwa University Affiliated High School, a powerhouse in athletics. Coming from a poor family, Kouyou takes up a live-in job at the school's dormitory to cover his expenses. However, he soon finds himself surrounded by a group of highly talented yet quirky female athletes. His role? Managing the dorm while also tending to their physical and mental well-being. With a mix of intense training, close-quarters dorm life, and massage therapy, an unpredictable and daring new chapter begins!

Centers on sea otter brothers Anila and Cocora, who live at a certain aquarium. Anila is the older brother who is cool, but also has a naive side. The younger brother Cocora is a passionate otter who adores his older brother.