In this world, people are born without a gender.

Shiori and Ritsu grapple with how it would feel in a same-gender couple with Hinase. To both their surprise, they learn their other classmates have more complex views on romance and gender than they thought. A chance meeting with Nao, the woman who saved Hinase's life, leaves the trio with a mystery: the identity of the androgynous older figure in her photo.

What if true love subverts society's expectations?