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
"Hm?" Huo Ling turned when he felt Yi Bing's gaze on him. "What's wrong?" he asked.
"… nothing." Yi Bing answered and looked away.
Question marks appeared above Huo Ling's head which he tilted as he looked at Yi Bing before he turned back to Bai Liu and Wu Yi to continue. "So, exorcism is an act of expelling a ghost from its medium." He spoke. "A medium is an object that can house a soul, or ghost. This includes a human body, which will then be called 'possession'." He explained.
Bai Liu's and Wu Yi's eyes widened in surprise. "You know a lot!" they exclaimed, sincerely praising Huo Ling.
Yi Bing smiled, feeling proud. "Of course, he is smart. That's why he is my disciple!" he told them.
Huo Ling can't finally help but roll his eyes at Yi Bing's excessive flattery, including of himself. He is telling Bai Liu and Wu Yi that since he made him his disciple, then Yi Bing has an excellent eyesight of choosing him.