Reo, a boy no older than fifteen, stands on the edge of his rooftop, gazing upward as stardust falls around him like gentle rain. His eyes reflect the universe, swirling with nebulae and specks of light. Tonight, the cosmic energy feels stronger—almost as if the stars themselves are whispering his name.

Reo's heart pounds as the cosmic pulse surges through him, tingling in his fingertips. He stretches out his hands, and suddenly, constellations swirl together, forming shapes and patterns suspended in midair. "What... what is happening to me? Am I really doing this?" His voice quivers with excitement and fear as the cosmic elements answer his call.

Drawn by an irresistible pull, Reo ventures into the forest, the cosmic energy guiding his every step. The altar hums with power; upon its surface, a swirling mass of stardust and dark matter awaits him. "If this is real, then maybe I can create something... something incredible," he whispers, hands trembling as he approaches the forge.

With a deep breath, Reo focuses, weaving cosmic threads into a weapon forged from pure celestial power. The blade takes form, shimmering with galaxies and pulsating with the heartbeat of the universe. "This... this is my creation. A cosmic sword, born from the stars themselves," he marvels, feeling the weapon hum in his grasp.

The Shadow Warden, guardian of the cosmic realms, appears, towering and cloaked in stardust. "You have awakened the forge, child. But can you wield its power responsibly?" The voice rumbles like distant thunder, testing Reo's resolve as the air shivers with tension.

Reo stands tall, cosmic weapon gleaming in his hands. "I am ready. I will protect this world with the power I've been given, and I will not let fear guide me," he declares, facing the Warden. The cosmic forces swirl around him, marking the beginning of his journey as a true wielder of the stars.