Amber had heard of Mecha Cupid, created by pseudonymous mad scientist Dr. Love to boost population growth, but it never weighed on her mind—until the day the giant robot torpedoed her boyfriend, making him fall for another gal! Heartbroken, Amber became Annihilation Maiden, dedicated to stopping Mecha Cupid forever—but she never expected her vengeful pursuit of the robot would lead it to pursue her! Now, Amber battles daily against Mecha Cupid, both to protect herself and the city's inhabitants.