The battle of the sexes may seem bad on Earth, but in a space colony far, far away, things are even worse. Men and women haven’t seen each other for decades, so they don’t just argue in the future – they go straight for each other’s throats. Enter lowly Hibiki, a little guy with big dreams of adventure, who finds himself in the middle of a firefight after stowing away in a top secret mech designed to purge the galaxy of estrogen! But as the gender war rages on, a mysterious crystal weapon forever links their starships – and their destinies. Time is running out as men and women explore their sexual differences, struggle to suppress raging hormones, and fight to survive the threat of a deadly common foe!