What is 117013?

"117013" is a novel written by the Japanese author, NisiOisiN, and illustrated by Take. It was first published in 2005. The novel is considered to be a part of the mystery genre and follows the story of a boy named Kamimaro. The plot revolves around Kamimaro's journey as he navigates through a series of challenges and mysterious events while trying to uncover the truth about his existence. The novel is known for its complex storytelling, unique characters, and thought-provoking themes. It has received positive reviews from readers and critics for its engaging narrative and creative storytelling techniques.