is a Japanese mystery shōjo (targeted towards girls) manga series written and illustrated by Natsumi Ando. It appeared as a serial in the monthly manga magazine Nakayoshi from the February 2009 issue to the September 2012 issue. Kodansha published the chapters in twelve bound volumes, from April 2009 to September 2012. Set in present-day Japan, it focuses on teenager Tsubasa Uehara, as she investigates the mystery surrounding her twin sister's suicide attempt. With her sister left comatose, Tsubasa poses as her in the hopes of uncovering the identity of the King, a person who grants wishes to Arisa's class, often resulting in violence. Del Rey licensed the series for an English-language translation in North America. It published the first volume in October 2010, and shortly afterward, Kodansha USA took over publishing, with the final volume published in January 2014. The series was positively received by English-language readers, with three volumes placing on the New York Times Bestseller List for manga. Arisa generally received positive reviews from English-language reviewers, and the first volume placed on the Young Adult Library Services Association's list of "Great Graphic Novels for Teens" in 2011. Plot Set in modern-day Japan, the plot centers on and , beautiful twin sisters separated by their parents' divorce who keep in contact through letters. Finally meeting again as teenagers three years later, tomboyish Tsubasa is envious, but proud, of her popular sister, in comparison to her own school life where she is often referred to as the "Demon Princess." When Arisa receives a letter from her school denouncing her as a traitor, she attempts suicide and becomes comatose. Shocked and saddened, Tsubasa poses as her, attending her school to find out why she tried to kill herself. She learns that Arisa's class sends wishes on their cellphones to a person called King each Friday. The King only grants one wish weekly, resulting mostly in violence. Tsubasa resolves to stop the King and find out the person's identity to save Arisa, in the hopes of waking her from her coma. Assisted in her investigations by , Arisa's classmate who learns Tsubasa's identity, she encounters , Arisa's best friend whom the King manipulates; , Arisa's boyfriend; , a transfer student whom Arisa had befriended online and who serves as the messenger of the King; and , Manabe's childhood friend who lost the use of her legs after a suicide attempt provoked by