S to M no Sekai

To survive a deadly train crash, Sekai Maihime is sent back in time where she uncovers hidden powers linked to a doll named 'S.' She receives assistance and faces limitations from 'S''s enigmatic yet benevolent guardian, Sovieul, who is responsible for Sekai's presence in 17th century France. Though Sovieul pledges to protect Sekai, he provides scant information about the bizarre occurrences. However, they come across Machiavello, also known as the Devil, who bears a striking resemblance to Sekai's childhood friend and love, Midou. Machiavello covets the powers shared by Sekai and 'S' to gain the power of the Devil R. Sekai's only wish is to find Midou and return to her own time, but she is constantly thwarted by her conflicting desires with 'S' and Machiavello's relentless attempts to seize her body. To locate Midou, Sekai must work together with 'S' and Sovieul to navigate through time while evading Machiavello.

S to M no Sekai was published in English as The World Exists for Me by Tokyopop from December 13, 2005, to April 11, 2006. It has also been published in Spanish by Norma and in German by Planet Manga.