Synopsis
The gates between the human world and demon realms crack open on the blood-blue night of the moon. Akira, a cool high schooler from Shizume City, isn’t afraid of legends. He is, though, terrified of letting down his little sister, Yuiko. She has spine trouble, and these days, long nights mean hospitals instead of hope. All Akira wants is to heal her. School rumors say the Demon Queen herself bargains with humans. Is Akira doomed if he answers?
He touches the strange blossom behind the school shed. Instantly, shadows bunch at his feet. The air grows cold, heavy with lilac scent. Surrounded by murky shapes, Akira speaks up: “Show yourself. If a Queen’s listening, why call a nobody like me?” There’s a soft tap of claw on stone, then black petals swirl up — the Demon Queen Vorastra in fractured light.
Vorasta asks, “You risk your soul for a single wish?” Akira presses on. They banter. Yuiko’s name and a signed paper flutter between them. Akira doesn’t want pain traded for new pain. He bargains harder than Vorasta expects, throwing logic at her old heart. She grins wide: “Mortal’s fire. Rare taste.”
Almost by mistake, Akira learns the borders are breaking because weak souls are vanishing. Vorasta is desperate; she blames a plot among her noble demons. The prince heir, Deio, and knight Liandra seem loyal, but someone’s lying. Or is it something more twisted? Akira’s the obvious outsider, though Niwa (his friend, famous for bad pranks) is dragged in too. Can a mortal spot a demon spy? Have you ever tried playing detective in another world under a twelve-moon sky?
Scenes shift. Deio is sharp but listens too close. Liandra guards the gates with hungry eyes. Akira can’t trust himself here. And then, Yuiko’s face — smiling. He clings to that reason, asks: “Queen, let me help.” Challenge crackles in her tone: “Spot which courtier killed the Blossom Warden—before the border falls—your wish is mine.” If he fails, he’s soul-bound to stay. That’s the new bargain. Cold wind sweeps the demon court as Akira takes his first clue: a torn crescent charm beside the Black Blossom Tree. 
Dusk scrapes across tall towers, lighting thorns with red gleam. Niwa whispers doubts. He fumbles, but tries to snap a pic on his phone—no data in demon space, by the way. Vorasta calls all her ranks forth. Each noble is wilder than the rest. Screaming from deep halls warns that factions are ready to snap. Trust breaks so easy here. But is Akira getting played?
Clues gather. Akira watches for eye-twitches, fake tales, scents of cleaning powder, even old dog fur in the halls. He recognizes one detail: Deio clasps a bandaged wrist that wasn’t broken before. Meanwhile, hints from dreamy whispering have Liandra pointing to secret dark pacts near the heart of the court. Does Akira follow gut or logic here?
Akira throws out a secret message to the Queen by flicking a glass petal, hoping she reads it. She snaps, “Grow up or bleed, mortal — you’ve got a day!” Yuiko flickers before his mind, weak but chanting his name. Stakes? Massive…
Night falls, shadows deepen. Akira gathers proof, catches two demons in a side tunnel. Niwa is almost caught eavesdropping. Will Akira try to shield his friend, or use him as a pawn — would you risk a soul not yours?
At dawn, Demon Queen’s court gathers for judgment. Seeds of lies are growing everywhere. Akira feels the gaze of hungry eyes, even those pretending kinship. He whispers his guess to the Queen with new resolve, prepared for the cost:
“I’ll trade myself. Set Yuiko free, keep her dreams bright. Just don’t trap her here.” The wind of other worlds howls loud, setting the court to trembling. Everyone waits, every face barely human.
Vorasta smiles, fangs bright, then: “But what if you failed on both counts?” That’s when Yuiko appears beside the Black Blossom Tree, alive but silent—her eyes two voids. Cliffhanger slices.
Will Akira’s logic and heart see him through, or has he misread the court and doomed what he fought for? And which lie is hiding deeper still?
