Vampire Cleanup Department

Tim Cheung is just an ordinary student in Hong Kong and an orphan. His parents died when he was still a baby, leaving him for his paternal grandmother to take care. As long as he grows, his classmates calls him 'rubbish bin'. His grandmother collects corrugated fiberboard to the recycle center for living. Once his grandmother when competing with an elderly for a corrugated box, Tim was involved in vampire cleanup department, a special office of Hong Kong government that founded since British Hong Kong era in order to deal with vampire. Tim discovered that he's neither human nor vampire by the department, and he also found out that his parents were the former members of the department, they were bitten during a mission and they sacrifice themselves for a greater good.