50,000 years ago, Hell was destroyed because of too much Foul from the resentment of the souls that later turned to Soul Eaters and devoured everything in their wake, leaving nothing of Hell. The gods above in Heaven, in order to take care of the newly-died souls, created the Afterlife Department comprised of grim reapers. Huo Ling was delivering food that day when he met Yi Bing and the guy gave him a warning. When he arrived to the customer's unit, he was killed. Huo Ling: you set up a death flag for me! Yi Bing: I'm a grim reaper. I'm the flag myself. Let me help you solve the mystery of your death. Huo Ling: your sister! Alternative title: The Different Ways I Died at 23 Update: daily
"'Neutral World'?" Huo Ling muttered, his brows are raised as he looked at Yi Bing. His gaze is inquisitive.
"Yes." Yi Bing nodded. "Neutral – neither side outweighs the other side. This is the real Stable World, maintaining a perfect balance. It is neutral, thus it is a Stable World." He explained.
"Then what about the Balanced Worlds?" Huo Ling asked. "They can't be a perfect balanced world?"
Yi Bing turned to him. "When it is neutral, it is zero." He said. "Exactly zero. A Balanced World can also balance the other aspects of their world. However, they can't be a Perfect Balanced World – a Stable World, because they can't maintain the balance." He explained. "They are not neutral. They are not zero. Just that, close to zero." He told him.