The city of never-ending summer—
The city’s name was Itogami Island, a tiny island floating on the Pacific Ocean, an artificial island built with carbon fiber, resin, metal, and magic.
The golden-haired vampire girl sat in a nook off the coastal hill path, looking down at the city as the setting sun shone upon it.
It wasn’t all that large a city. Monorails ran through the gaps in the densely packed buildings as if threading the eyes of needles. Humans and demons filled the same train cars as if it was the most natural thing in the world—
She heard the calls of gulls over the sea breeze.
Somewhere off in the distance, a melodious bell announced the end of school.
Gazing with regret at the cup of ice cream she’d just finished eating, she felt the black-haired girl sitting behind her suddenly rise to her feet and wave her hand.
She hastily followed her friend’s gaze. A pretty girl with a black guitar case on her back was walking with an ordinary-looking boy.
“—Kojou!”
The golden-haired vampire girl’s voice bounced as she spoke the boy’s name.
Meeting her black-haired friend’s eyes, the two set off in a run, hand in hand. Noticing the pair racing over, the boy gave them a strained, blushy smile. An ever so slightly pouty expression came over the girl with the guitar case as she grasped the sleeve of his parka.
This was an ordinary day in the Demon Sanctuary of the Orient—
The everyday life of the vampire called the Fourth Primogenitor.