Kaiba

Kaiba (カイバ) is an anime series directed by Masaaki Yuasa, initially broadcasted by WOWOW satellite network in spring 2008. The animation was created by Madhouse, and it is described as a sci-fi love story.

Plot
In Kaiba, memories can be stored as data. The death of an individual's body does not necessarily lead to the end of their existence.

Society is falling apart and authority is lost and stagnant. Two cities are separated by a layer thick clouds and electrical storms, impossible to pass without losing one's memories. Above lies a realm of wealth and power, whose privileged population barter bodies and memories for their own enjoyment and longevity. Below lies an impoverished world where good bodies are hard to come by and money is scarce.

Kaiba centers on a boy without memories traveling through the universe searching for his past and the person whose photo lies inside a locket around his neck.