21g no Akari
21gのあかり
A doctor named Duncan McDougall proposed the idea that the human soul weighs 21 grams. Once considered a baseless fantasy, this theory has been confirmed after many years. Advances in science and technology have shown that a small amount of an unidentified gas is released from the body after death. This gas, found to be a stable form of energy, can be collected and used to produce electricity, significantly changing human life.