Tormented and bullied people can access a special website, run by a Hell Girl who will enable them to take revenge on their torturers. The price for such a service is only that the person must join their torturer in damnation.

Three murder cases take place in Tokyo. Numbers are left at the murder scenes, possibly hinting at where the next murder will take place. An investigation begins of the serial killer and Detective Kosuke Nitta (Takuya Kimura) works on the case. He believes the next murder will take place at Hotel Koruteshia Tokyo. To catch the killer, Kosuke Nitta goes undercover and begins working at the front desk of the hotel. Naomi Yamagishi (Masami Nagasawa) works at the front desk of Hotel Koruteshia Tokyo. She is selected to train Kosuke Nitta for his front desk job, but they can't get along. Kosuke Nitta is focused on catching the killer, but Naomi Yamagishi prioritizes the safety of the guests. As they begin to understand each others differences, they also begin to build a trust between each other. Who is the murderer? --asianwiki

Higurashi Tabito has lost all his senses, save one, following an occurrence in the past. he can see, but he cannot hear, smell, taste or feel. Incredibly, he is a detective owing to a heightened sense of sight. His daughter Tei's teacher Yoko becomes aware of his ability and asks for his assistance locating a treasured item. In tandem, Tei disappears and working on finding her puts the man and his ability in jeopardy. Written by aghaemi