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
Yi Bing saw Huo Ling's action and he could guess what he is planning when he saw the unknown creature which only has a pair of 'eyes', that really don't look like eyes of a creature. "You plan to use it to find Jin Wu and Mo Shi?" he asked. He recalled that it was also this creature that they used to find the source of energy of the Collapsed World 444 by following the ball of world energy.
"Yes." Huo Ling answered with a nod.
"Smart." Yi Bing sincerely praised. "Jin Wu and Mo Shi are grim reapers and have Conferment Seals on them, which made by Shen Taizi using his powers, which also are a form of energy, and similar to the energy that runs to every world." he said. "In short, it is the energy of life." He looked at the unknown creature which rolled on Huo Ling's bony palm.