The training was grueling, an hour and a half of meditation every day. If Rayo's features changed even slightly, he would start over, performing three thousand vertical sword strikes, receiving one hundred blows from Rock, enhancing his aura by near-death experiences, learning martial arts, and the art of merciful death, "Ano-mkari," which relies on speed and precision. Every weekend, he would fight Rock, and after the fight, Rock would teach Rayo how to define the form of his Quirk, since he had awakened it before his prime, so it was still incomplete and could harm his body if misused. And so the days passed.
Months passed, and Rayo was just days away from reaching his peak age of ten. His birthday was also the day he would fight Rock again. Time passed, and when the appointed day arrived, there was no sign of Rock. Rayo waited and waited for minutes, then for hours, until the sun began to set. Sad and disappointed, Rayo returned home.
Upon arriving, he froze at the horrifying sight. Rock's hands were covered in blood, and his mother lay on the ground, her body mutilated and bruised.
...Then darkness fell, and all that remained was Rayo in the middle of the forest, holding Rock's severed head. Rock's body was riddled with holes left by Rayo's dark tentacles. Rayo regained his senses, but his terrifying gaze remained, then transformed into a blank, lifeless stare. With unsteady steps, he made his way to his house, surrounded by the villagers, but he paid them no heed. He went to his dead mother's body, carried it outside, and buried it with his own hands. He was heartbroken, devastated, and broken, yet something drove him forward. Was it hope or conviction? No one knew.
He stayed in the village for a week, and during that week he learned the truth. "Years ago, Rock assaulted his mother, causing her to give birth to him. She named him Rayo after an ancient legend and raised him despite all the difficulties. Afterwards, Rock returned, manipulated him, and then killed his mother. Rayo killed Rock." On the first day of the second week, he packed his belongings and food and left the village without a specific destination. He only wanted to know the answer to one question: (How, and why?)