This book is about A boy took his sister who had become a ghost in an accident to find a way to turn her back into a person. In the beginning of the story The boy happily went out to sell charcoal, but when he came home the next day, he found that all his family were killed by ghosts. Only his sister survived the accident, but she became a ghost that everyone was afraid of As the story continues,The boy joined a team specialized in hunting ghosts, trying to ask the way to turn ghosts into people from those ghosts
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