My journey to the top in this other universe

<p><br/><br/>Inside a noisy classroom, a boy sat on a wooden chair with his head resting on the desk. He sported long blue hair that reached his neck, eyes closed as if in sleep, yet his fingers twitched intermittently. As he opened his light blue eyes tinged with red, he grumbled, "So noisy. Can't these idiots tone it down a bit? Annoying, especially since I didn't get any sleep due to work. I should get some fresh air on the roof." Ren, 18 years old, had no parental support and had learned self-reliance from a young age.<br/><br/>After losing his parents, he navigated life alone, working hard to survive. "Ahh, this breeze feels enjoyable. If only I could enjoy it without worries. Life's a pain. Why am I so lonely and broke?" Ren sighed in loneliness, yearning for wealth and companionship, both seemingly out of reach.<br/><br/>As he continued to savor the breeze, he eventually returned to the classroom, finding solace in sleep with his head back on the desk. Unnoticed by anyone, Ren's breathing ceased as his consciousness slipped away, drifting into the unknown void.<br/><br/>In this endless void, a single soul drifted, dormant for unknown years. Suddenly, the soul began to vibrate, coalescing into a fully formed boy—Ren. Opening his eyes, he found himself in an unfamiliar place, bewildered and contemplating his predicament.<br/><br/>"Where am I? It's quiet, at least. But where exactly is this?" Ren, now realizing his situation, panicked, considering the unthinkable: "I'm dead, but how? This must be the afterlife, but why am I here?" Unexpectedly, a man dressed in white, appearing in his thirties with hair of red and white, emerged from the void.<br/><br/>The man seemed astounded at Ren's presence: "You're an unusual case to have entered this void without permission. Quite peculiar." Despite Ren's worry about this unknown being, the man proposed sending Ren to another perilous world—the mortal realm. Faced with no alternative, Ren reluctantly agreed.<br/><br/>"Will you grant me anything?" Ren inquired softly, to which the man agreed to bestow upon him an ability called Haki, based on willpower, cautioning its limitations in a dangerous world. As a bright light enveloped Ren's soul, he vanished from the void.<br/><br/>Years passed, and Ren found himself in a world teeming with mysteries and diversity, with humans considered the weakest among forty continents inhabited by different races. In the Avalon kingdom, ruled by King Arthur, a scene unfolded as the 25th prince was born, surrounded by tensions and a harsh environment.<br/><br/>Lady Asuka, exhausted yet relieved, contemplated the challenges her newborn would face, aware of the kingdom's high expectations. Meanwhile, Ren, now known as Shinra, contemplated his situation, feeling the weight of his newfound powers and the complex world he had entered.<br/><br/>As years elapsed, Shinra's younger siblings, Asia and Karna, thrived with their awakened powers, while Shinra concealed his abilities, harboring a plan to shake the kingdom. Eventually, a loud boom echoed in an unknown location, revealing a smiling boy with yellow hair and green eyes—Shinra.</p>