In the near future, while most people enjoy a false sense of peace and equality controlled by the government, there is a town in a corner of Asia where people of different races who are disappointed with life gather. This is Rags Town, a town of garbage. The story takes place around the S&A Detective Office in Rags Town. The head of the office is Shu. He used to be a hot-shot police officer who had faced off against evil powers, but he was socially disgraced and lost everything. The other members are the handsome Akira and Shu's two apprentices: the high school girls Manami and Ayaka. Shu lives a colorless life as a detective, unable to find anything to which to devote his life. However, when he encounters a girl who has lost her memory, he is involved in an event that will rock Rags Town.

Light Yagami is an extremely intelligent young man who resents the crime and corruption in the world. His life undergoes a drastic change when he discovers a mysterious notebook, known as the "Death Note", lying on the ground. The Death Note's instructions claim that if a human's name is written within it, that person shall die. Light is initially skeptical of the notebook's authenticity, but after experimenting with it, Light realizes that the Death Note is real. After meeting with the previous owner of the Death Note, a shinigami named Ryuk, Light seeks to become "the God of the New World" by passing his keen judgment on those he deems to be evil or who get in his way. A shinigami's Death Note is a notebook that can kill any human whose name is written in it. All Death Notes are governed by the same set of rules determining the extents and limitations of the Notes' powers.

One of the noble families of England - Phantomhive, has a butler, Sebastian Michaels. He has unquestionably perfect knowledge, manners, talent with materials. martial arts and much more. But for some reason, he serves a 12 year old master...

Ayumu Narumi's older brother Kiyotaka, a renowned detective and piano player, disappears all of sudden. The only clue Narumi has, are the Blade Children. Two years later a row of murders and incidents begin, relating to the Blade Children. Together with school journalist, Hiyono Yuizaki, Narumi tries to figure out their destiny.