The story centers on Nayu, a middle school girl who shocks her schoolmates on the first day of school by wearing black lace panties. She likes this kind of underwear, and she tries to "spread the word on the merits of [these kinds of] underwear" via an underwear club with her schoolmates, who are worried about their bodies' development and which underwear to choose.

A semi autobiography of Tezuka Osamu. Son-Gokuu is a monkey who was born from a stone and is endowed with magical powers. He gets carried away and goes on a rampage until at last Buddha confines him within Mt. Gogyo. Saved by Sanzohoshi, Son-Gokuu accompanies him on a journey to India. But on their way, monsters lie in wait for them.

When high schooler Mari bumps into a fellow tardy student, she's surprised to find out he's a beastfolk who's to attend her school! After all, it's not rare for beastfolk to coexist alongside humans, but it's still uncommon, with the prejudice and all. Nervous to meet one at first, Mari soon learns there's more to him than his furry exterior. In fact, the more she gets to know him, the more she finds herself drawn to him, his steadfastness, his kindheartedness, and... his body...

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.