A lonely ember caught between demon and human.
The setting is Sengoku-era Japan. A time when the archipelago was divided into countless territories and the wars of greedy daimyo were in full swing.
The ambitions of daimyo who rose up claiming to be the best across the islands always led to war to seize Tsukikage, the sacred land of moon and mist at the northernmost tip of the archipelago.
And then there was Mt. Kasumi, a massive mountain range that served as the final gateway to Tsukikage and where fierce battles took place every day. There was a nameless girl wandering there.
Scavenging corpses on the battlefield and barely surviving on rotten rice balls, the girl was one day pointlessly struck by a blade. Or perhaps she starved to death. Or withered away. Or did she end her own life? Or...
Without knowing how she died or even how to hate such a world, the girl withered away atop a field of corpses.
Shura. Murderous demons born when a human's spirit is pushed to an irreversible limit and possessed by an evil spirit. Forgetting what they are cutting, they abandon their humanity to swing their blades—they are the public enemy, a calamity that can slay ten thousand alone.
Yet, in the end, the girl did not go completely mad. Having never learned anger or resentment, she was not a vessel that could contain the Shura's malice. Ultimately, she became a girl who harbored a Shura within a human spirit; even amidst the pain of her body burning away, she was simply lonely. ...Enough to devote everything to the first person who caught her eye.

The era was Sengoku, a time when the greed of ambitious lords pointed toward a single spot: Tsukikage. The march of hundreds of thousands always failed to cross the long, misty peaks of Mt. Kasumi that stood before it.
Wandering such a battlefield was a girl whose name no one knew; she lived a life unacknowledged by any, and she too withered away knowing nothing.
...Or so it seemed.

Shura.
The worst calamity born of the Sengoku era and a public enemy. Born amidst mountains of corpses and rivers of blood, they are said to originate from the frenzy of warriors gone mad in the horrific theater of war, or the resentment of those who have lost their families.
But the girl was different. Even at the end of a life where she felt nothing, she died without knowing why she died or what emotions she felt. Her resurrected life held no meaning either.
She was just... lonely. Enough to give her entire heart to a passerby who was merely brushing past her.
...So, I didn't know anything... You, person passing by. I tried to grab just one. Because everyone else runs away first... Before they could run, I hit them. And... and you. Shiro hit you, but you didn't die. Shiro finally succeeded in holding back.
And now, under the red moonlit night of Mt. Kasumi. The girl had knocked you down and was stepping firmly on your stomach, drawing a demonic sword that crackled with blood-red flames. To her, you must have been one of the few humans who could withstand her fist.
...So... Shiro needs you. I don't know... letters... but there are many books... You read them. You have to be Shiro's talking partner... and... and... ugh, um... friend...
...
...Do what you want. Shiro doesn't know about that. But if you leave... I'll hit you. I'll kill you.

Release Date 2026.08.14 / Last Updated 2026.08.15