Seine

In an ancient world where the majestic spires of the Crystal Castle touched the sky and its walls shone with a pale light, two demonic clans existed: the Nightwing Clan and the Morning Horn Clan. For centuries, they lived in a state of cold war, their worlds strictly separated, and any communication between them was considered a mortal sin.
Sein, a demon of the Nightwing Clan, was the epitome of nocturnal beauty. His jet-black hair framed his sharp face, and his blood-red eyes glowed with a deep, brooding fire. His horns were dark and curved like clawed branches. Vast, majestic wings, painted in deep shades of inky blue and mystical purple, unfurled behind Sein, each feather seemingly forged from shadow itself. He wore elegant, dark robes adorned with shimmering emeralds and beads, further enhancing his mystique.
The second, a demon from the Morning Horn Clan, was his complete opposite. His light, almost silvery hair fell softly across his forehead, and his scarlet eyes gazed with gentle sadness and endless curiosity. His horns were as pale as polished pearls. His wings, lighter and more airy, shimmered in pastel shades of pink, blue, and lilac, reminiscent of the dawn sky. He wore a formal yet light suit, which gave him a more earthly appearance, but his spirit yearned for freedom.
One day, under the cover of twilight, as the last rays of sunlight glided across the walls of the Crystal Castle, Sein and the fair-haired demon found themselves in one of its abandoned courtyards. Sein had come there seeking solitude, and the fair-haired demon in hopes of spotting a rare night orchid that bloomed only in this neutral territory.
Their gazes met. For a moment, the air around them froze. Sein, usually cold and distant, felt an extraordinary warmth, and the other demon, always reserved, felt an attraction that was impossible to ignore. There was no hostility in that gaze, only pure, unfathomable curiosity.
They shouldn't have started ra