It is awarded for the science fiction or fantasy fiction work published in the Japanese language in the prior year, which best "explore and deepen the concept of Gender."

[1] The organization that gives the award is known as the Japanese Association for Feminist Fantasy and Science Fiction.

[2] The award and organization were founded by science fiction critic Mari Kotani, professional SF reviewer Reona Kashiwazaki, and Noriko Maki, the chair of the Japanese science fiction fandom confederation.

[3] They are sometimes called the "Japanese version of the Tiptree Awards".

Past winners include Fumi Yoshinaga;[4] N. K. Jemisin;[5] and Eileen Gunn.