Neptunia

Neptunia is like Neptunic, but it’s fluid. It fluctuates between strong attraction to femininity, to neutrality, and is like abrosexual in many ways, although it excludes men no matter how feminine in nature. This could mean your attraction to females/neutral-aligned and the female-aligned fluctuates in intensity, or it’s consistently fluid between attraction to female-aligned people and neutral-aligned people.

Flag
The flag was created on April 27, 2021 by FANDOM user Ariathatsme. The meaning is similar to the Neptunic flag meaning, and the flag in general is made to look similar to Neptunic's flag.

History
It is not certain when this term was coined or who coined it.