Prologue - Project Hera (Plus Main Character Visuals)

Title: Project Juno
Genre: BL, Sci-Fi, Romance, Drama, Comedy
Author: Gonzo

What will happen if the last female on earth dies and all that's left are just males? How will mankind be able to repopulate if males can't get pregnant? Is it the end of humanity for them? Is there another way to save their race?