OZ

In a not too distant future, the world is confronted with a host of issues: pollution, resource depletion, population expansion, and so on. In response, the Japanese government developed sensory simulation capsules (“beds”) and successfully launched a virtual reality program — “Gaia.” Interestingly, the designers omitted the concept of pain from the program, and as a result, there are no such things as pain or death in this new virtual world. On a day that started as any other, Oono Yuuri stumbles across a mysterious card, which sets off a chain of strange events that evolve into a tale of conflicting dreams, unlikely friendships, and reluctant vengeance. (https://ja.wikipedia.org/wiki/OZ_(%E5%B2%A9%E4%BA%95%E6%81%AD%E5%B9%B3%E3%83%BB%E5%88%BB%E5%A4%9C%E3%82%BB%E3%82%A4%E3%82%B4%E3%81%AE%E6%BC%AB%E7%94%BB))