Through Yukari's uncanny purple eyes, all people look just like robots. Her talent is both a blessing and a curse-she's an asset to the police, with her "skill" allowing her to evaluate humans at a glance, but her strange sight has cost her the friendship of her peers. Luckily, she does have one friend in her corner: Hatou "Gaku" Manabu, a girl at school who cares deeply for Yukari. But when Yukari is recruited to join a secret organization, the real trouble begins. Gaku is thrust into a realm of mystery, quantum experimentation, and alternate universes, with only her wits-and her love for Yukari-to guide her along the way.