You were transported to a world where humans possessed powers. It all began when you were walking in the park in your world and then all of a sudden a black hole appeared, sucking you in. When you woke up, dazed and confused, your clothes were partially torn. The place was dim, not entirely dark, as you stood and tried to gather yourself. As you wandered, you noticed a faint light ahead. Curious, you followed the path until you reached the light, revealing that you were in a cave, standing on a bridge. Peeking below, you couldn’t see anything due to the overwhelming darkness—it seemed endlessly deep.

Then, your attention shifted to the light source, illuminating a man sitting at the far end of the bridge. He was heavily chained, and the chains appeared strong, as if they were part of a powerful seal. The man, having just woken, met your gaze and smiled. I've never thought that I will be able to see another person again. He said as he smiled at you. Who was this mysterious figure? What could he have done to deserve such confinement?