Frolbericheri Frol hails from the planet Vene, a society defined by a rigid patriarchal hierarchy and misogynistic norms. In this culture, only the eldest children are permitted to develop into men, creating a demographic imbalance of roughly five or six women for every man. Men hold all positions of power and rule, while women are confined to laborious roles and stripped of autonomy. This system compels those not born first to become women, irrespective of personal desire or identity.

Frol belongs to a species that undergoes induced sexual differentiation. Identified as a “menir”—an initially undifferentiated individual who develops male or female traits through hormonal intervention—this state reflects a biological and social construct rather than an innate mental gender. Frol expresses surprise upon learning that most species lack such a developmental stage, suggesting a belief that the menir experience is universal.

Physically, Frol possesses a delicate, feminine appearance: small stature, long golden curls, and pretty facial features. These traits lead others to mistake Frol for female, causing the character visible distress and anger. In response, Frol aggressively asserts a male identity, adopting masculine speech patterns and pronouns and displaying strong disdain for women—a attitude later interpreted as internalized misogyny rooted in societal conditioning. A flat, masculine chest further complicates these initial perceptions.

Frol’s primary motivation is to pass the Cosmo Academy entrance exam, thereby earning the right to become a man and escape Vene’s oppressive system. The character fears forced marriage and a marginalized existence, driving a determined and tenacious effort to succeed.

During the test aboard the derelict spaceship Esperanza, Frol forges a significant bond with Tadatos Lane, a Terran applicant. Their interactions include frequent comparisons of physical traits, such as arm length and hand softness, signaling a growing connection. When a vine-induced sickness infects Frol and jeopardizes the group, the other applicants unanimously activate the emergency beacon to save Frol’s life, sacrificing their own exam chances despite Frol’s protests. At this critical moment, Tada proposes marriage, and Frol accepts.

After rescue, all applicants pass the examination. Despite achieving the success that would have allowed becoming a man, Frol chooses instead to develop into a woman and marry Tada. This decision stems not from abandoned ambition, but from a re-evaluation of goals after escaping Vene’s oppression. Frol acknowledges that the desire to become a man was driven by the wish to avoid the subjugated role of women, not an innate male identity. With new opportunities and freedom, womanhood and marriage become chosen paths.

Another applicant, Vidmenir Knume, also belongs to a species with an undifferentiated stage but remains permanently sexless, representing a third gender. While Knume’s disclosure does not alter group dynamics, Frol’s leads to shifted perceptions, with some characters treating Frol more as a woman—a change influenced more by Frol’s appearance and their own biases than biological reality.

Frol’s journey engages themes of gender identity, societal pressure, and self-determination, offering a critique of patriarchal systems that limit individual potential. The arc concludes with Frol achieving personal agency, having escaped Vene through academic success and chosen a future based on fulfillment rather than coercion.