"Ovulation Exhibition" is a manga series that explores themes of fertility, societal expectations, and personal identity through a surreal and symbolic narrative. The story centers on a young woman named Aoi, who lives in a dystopian society where fertility is strictly regulated and celebrated as the ultimate measure of a woman's worth. Women are required to participate in public exhibitions, known as "Ovulation Exhibitions," where their fertility cycles are displayed and judged by an authoritarian governing body. These exhibitions determine their social status, opportunities, and even their right to reproduce.

Aoi, initially a passive participant in this system, begins to question its morality after encountering a mysterious man named Ren, who is part of an underground resistance movement. Ren introduces her to a hidden world where individuals reject the oppressive norms of their society and seek to reclaim autonomy over their bodies and lives. As Aoi becomes more involved with the resistance, she uncovers dark secrets about the origins of the exhibitions and the true purpose behind the government's control over fertility.

The narrative delves into Aoi's internal struggle as she grapples with her own beliefs, societal pressures, and the growing realization that her body has been commodified. Her journey is marked by moments of vulnerability, defiance, and self-discovery, as she navigates relationships with other characters, including her childhood friend Miko, who remains loyal to the system, and Kaito, a scientist who harbors his own conflicted feelings about the exhibitions.

The plot intertwines personal drama with broader societal critique, highlighting the dehumanizing effects of a system that reduces individuals to their biological functions. Themes of rebellion, identity, and the search for freedom are explored through Aoi's transformation from a compliant participant to an active challenger of the status quo. The series balances its speculative elements with emotional depth, creating a thought-provoking examination of power, control, and the human desire for self-determination.