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
"I hacked the government's database, and there are tons of confidential information. I opened some, and found many government officials have been bribed by those so-called 'nobles." Si Shui said when Yi Bing and Di San returned without finding a clue, as expected.
Yi Bing, Di San, Liu Lin and Feng Er didn't react. Corruption is normal in any world. Humans are insatiable creatures. Give them one, and they'll want two. It's a never-ending cycle. That's why, humans are embodiment of sins. They represent the six desires: lust, greed, wealth, obsession, fame and pride.
For one, a soul becomes a grim reaper because it has committed a sin in its previous life. They will become a grim reaper to pay for their sins, but whether if their sin will truly be repaid is unknown. Thus, a grim reaper's life is very long, because the time is unknown.