Chapter 1
In an unknown location and time, within a secret base, Leon stood in a small, damp room of less than fifteen square meters. He wore a thin white gown, leaning against the cold brick wall with his eyes closed. He had no expectations in his heart.
For a month, no one realized that this little boy had changed—his soul no longer belonged to this world. Leon was both unfortunate and lucky. He didn't know why he had suddenly traveled through time in his sleep and taken over the boy's body. Every few days, he endured human experiments that were almost unbearable.
Leon estimated that the boy had died a month ago, unable to withstand the torment, allowing him to take over. Over the past month, Leon came to understand the excruciating pain of these experiments. A mature mind could barely survive, let alone a child.
But he held on to the hope of escape.
He quietly suppressed his expectations, counting the passage of time. Finally, a metallic voice broke the silence:
[Ding!! Would you like to start signing in?]
Leon's breathing quickened. "Sign in," he whispered.
[Ding, sign-in reward: Glint-Glint Fruit(Pika Pika no Mi).]
As the voice faded, a fruit appeared in his hand. Feeling its rough texture, Leon's heart filled with joy. The Glint-Glint Fruit—one of the top Devil Fruits from One Piece.
As a Glint Man, his body could transform into light, moving at the speed of light and using the characteristics of light as a weapon. Though limited by the straight-line propagation of light, with the "Yata Mirror" technique, he could achieve freedom of movement. His only weaknesses were Haki, Seastone weapons, or the Dark-Dark Fruit's abilities.
In this world, without the Seastone factor, even the curse of being unable to swim no longer applied. Leon realized that, here, the Light Human had no limitations.