In these stories, heroine Jill Trent was once a male janitor named Jim Trent, who was transformed by exposure to the strange element Femavium into a girl — but a girl who still has the spinal fluid of a man! When the atoms of Jill's Femavium-enhanced blood were mixed with her "Man-Fluid," the interaction gave her brain cells with the proportional density of 58 girls. Together with her fiancée Daisy, she uses her newfound she-science abilities to fight crime!
The Remix Comic◊ provides examples of:
- 1st Law of Gender Bending: Definitely seems to apply. Neither Jill nor the other "Femavium girl" we meet shows much inclination to become a man again.
- 2nd Law of Gender Bending: Jill thoroughly embraces her femininity.
- 3rd Law of Gender Bending: Jill's an Action Girl with some traditionally "masculine" traits, but she also dresses and behaves like a fashionable young 1940s woman, for the most part.
- Applied Phlebotinum: The Femavium that changes men into women with unusual talents (For Jill, it's brain cells with the proportional density of 58 girls. Another character gains "the flexiblity of 45 ballerinas."
- "Flowers for Algernon" Syndrome: Averted. Jim Trent was apparently kind of a dumb guy before his transformation, but Jill enjoys being a genius, and it's implied that she fears returning to her previous level of intelligence if she becomes a man again.
- For Science!: One of Jill's stated reasons for not trying to reverse her Femavium transformation and become a man again.
- Gender Bender: The central premise of the series.
- Hermaphrodite: Not in the usual literal sense, but the bodies of Femavium girls continue to produce "spinal man-fluid" that has the properties of sperm and apparently allows them to father children.
- Hint Dropping: Jill frequently drops hints to Daisy that they could have a romantic relationship without Jill reversing her sex change.
- I Choose to Stay: It seems fairly clear that Jill probably could reverse her Femavium-induced sex change if she chose, but she doesn't.
- If It's You, It's Okay: Jill seems to be working on a long-term project to have Daisy come to this realization and accept her former fiancé as a lesbian lover.
- Incompatible Orientation: Jill still likes girls, but Daisy both appears to like men exclusively and seems oblivious to even the existence of lesbianism.
- Patriotic Fervor: Another of Jill's stated reasons for remaining a girl; There's a war on, and Uncle Sam needs Femavium Girls!
- The Quisling: The motivation of the bad guy in the Jill Trent story reprinted in the Jet Dream 1970 Annual. Confident that the Axis will win the war, he intends to sell Femavium secrets to the Nazis and become the "Nazi Queen of America."
- Remix Comic: Of a real, somewhat less weird, Golden Age comic book feature.
- Stay in the Kitchen: Being an ex-male doesn't protect Jill from this Double Standard, when the police deny permission for Jill and Daisy to snoop around a funeral parlor.Cop: "A funeral home is much too disturbing for a girl — even if she is a She-Sir Science Sleuth! Sorry, ladies!"
- Super Soldier: Jill says that, with a sufficient supply of Femavium, the U.S. could produce an unstoppable "Science-Girl Army" of transformed males.
- Unusual Euphemism: "Man-fluid," which describes a type of spinal fluid that, among other things, seems to have all the properties of sperm.