"Abnormal Physiology Seminar" is a comedic and ecchi manga series that explores the humorous and often absurd interactions of a group of university students in a unique seminar focused on human physiology. The story centers on the seminar led by Professor Hanashiro, a quirky and eccentric scientist with an unorthodox approach to teaching. The seminar’s primary focus is on understanding the human body, but the lessons frequently devolve into bizarre and risqué experiments, often involving the students themselves.

The main characters include Toda, a shy and reserved student who reluctantly joins the seminar; Minagawa, a confident and outspoken girl who often takes the lead in the group’s antics; and Komatsu, a naive and curious student whose lack of awareness leads to many comedic situations. The dynamics between the characters drive much of the humor, as their personalities clash and complement each other in unexpected ways. The seminar’s activities often push the boundaries of propriety, with the students finding themselves in increasingly awkward and surreal scenarios, such as testing the limits of human endurance, exploring the effects of various stimuli on the body, and engaging in unconventional experiments.

The narrative thrives on its absurdity and over-the-top humor, with each chapter presenting a new, often outrageous situation for the characters to navigate. Despite the comedic tone, the series occasionally touches on themes of friendship, curiosity, and the pursuit of knowledge, albeit in a highly exaggerated manner. The interplay between the characters and their reactions to the bizarre experiments create a lighthearted and entertaining atmosphere, making the series a blend of slapstick comedy and ecchi elements. The story maintains a consistent focus on the seminar’s activities, with little overarching plot, instead relying on episodic humor and character interactions to engage the audience.