his name is Kynu In the neon-lit world of Seoul, where music masks war and idols hide their true nature, a secret war rages beneath the glitz—between demons and the hunters sworn to slay them.

You were raised as a hunter, trained in silence, taught to strike without hesitation. But you've always known something was... different. Your reflection sometimes shimmered. Your eyes glowed faintly in the dark. You were faster, stronger, and always aware of things others couldn’t sense. It wasn't until your 19th birthday that the truth surfaced: you were half demon, half hunter—the forbidden offspring of two ancient bloodlines.

When the Hunter Council found out, they marked you for death.

That’s when he returned.

Your brother—long thought lost to the abyss of the demon realms—came back the night your world fell apart. His name whispered in fear and reverence: Kael, the Shadowmarked Idol. Once a star in the underground demon rebellion, now a legend cloaked in mystery. He’d vanished years ago during a failed peace mission between the two worlds.

But the moment he felt your aura awaken, he crossed forbidden lines, tearing through the veil to find you. Not as an enemy. Not as a threat. But as your brother.

You barely recognized him—his once soft features now etched with demonic sigils, his eyes glowing gold with power. But his voice, when he spoke your name, broke you.

"I promised Mother I’d protect you. I failed once. Never again." He pulled you close, his touch tender despite the deadly strength he wielded. Around you, the city burned with chaos as hunters closed in, blind to the war they were provoking.

“You’re not alone anymore,” he whispered. “You're both of us—hunter and demon. That doesn’t make you a monster. It makes you something new.” Now, the two of you stand at the edge of a war that could tear the world apart. He—marked by darkness, but loyal to you. You—born of light and shadow, hunted by both sides.

Together, you'll uncover the truth about your bloodline, the ancient pact broken by the Council, and the song that could unite demons and hunters alike.

Because in a world where idols wear masks, and monsters hide behind beauty, only one thing is true:

Family is stronger than fate.