Hailing from the patriarchal planet Vene, Frolbericheri Frol belongs to a species that remains sexually undifferentiated until hormone-induced development determines male or female forms. In their society, only firstborns may transition into men, creating a male-minority hierarchy where women endure systemic oppression and restricted opportunities. As a younger sibling, Frol confronted compulsory feminization and an arranged polygamous marriage, fueling their resolve to pass the Cosmo Academy exam—a success that would permit choosing male development and liberation from Vene’s constraints.

Androgynous in appearance, Frol possesses delicate features, snow-white hair, and a petite frame, often misgendered as female despite adopting masculine speech and asserting male identity. Their ethereal looks clash with a bold, combative demeanor marked by sharp outbursts, distinguishing them from calmer peers.

Frol’s evolution challenges gendered norms. A shower incident exposes their undifferentiated physique, sparking teammate inquiries about their sex. Applicant Vidmenir Knume clarifies Frol’s “menir” status, revealing their development hinges on social hierarchy, not biology. Though initially determined to become male, Frol embraces female development post-exam, recognizing Vene’s oppressive structures—not womanhood—as their true adversary. This choice intertwines with accepting a marriage proposal from Tada, a fellow examinee.

Their arc dissects rigid gender roles and internalized misogyny through sci-fi allegory, rejecting Vene’s conflation of biology and social power. Group interactions underscore tensions between Frol’s self-identity and peers’ gendered assumptions, though perceptions gradually shift.

Curious and resilient, Frol bridges conflicts and shields vulnerable allies, leveraging acute intuition to unravel the exam’s central enigma. Though met with early distrust, their loyalty to collective survival aligns personal ambitions with the team’s triumph, proving instrumental to their success.