Under the strong sunlight, the sea reflected a golden shade. Apart from that, deep in Klein's eyes were countless illusory black lines.
They extended from the nearby mermaids, from his body, and from the different parts of the neighboring waters. They were packed densely in thin and numerous threads, corresponding to different spots. Some extended into the infinite distance, to the ends of the void.
This strange, beautiful scene wasn't an unfamiliar sight to Klein. In the few times he used the All-Black Eye's powers and his usage of it to create the fake World, he had been able to see similar scenes.
This was the source of a Marionettist's Beyonder powers!
From the knowledge he obtained from the potion, these illusory thin black threads were known as Spirit Body Threads. By controlling them, one could directly influence the target's Soul Body, Astral Projection, Body of Heart and Mind, and Ether Body. Then, with the Ether Body as a bridge, one could control the target's body.