Is Kaiba coming back?

One day a man, Kaiba, wakes up in a broken room. He has no memories, only a pendant with a picture of an unknown woman. Outside of the room are grotesque floating electrical clouds of disjointed memories. Kaiba is suddenly assaulted, and escapes into space. He travels to various planets, encountering various people and retrieving his memories. Memories of an inconsistent and decaying world, of his own agony and of Neiro, the woman in the picture.