Haruhi Suzumiya is the title character of the Haruhi Suzumiya series, created by Nagaru Tanigawa and developed into a media franchise. First introduced in the light novels, which were then adapted into two manga and an anime series, with a forthcoming sequel, she is the main focus of the series. In an interview with Tanigawa, he stated that the idea for her character came during a sleepless night at the beginning of the 21st century.
In the beginning of the story, she is initially shown as anti-social and displayed various personality quirks, but as the series progressed, she became more open with her emotions, whilst still remaining highly active. She became the founder of, and recruiter for, the SOS Brigade, forcibly enlisting Kyon, Yuki Nagato (the only member of the Literature Club), Mikuru Asahina, and Itsuki Koizumi. She is responsible for organizing most of their activities as a group.
Unknown to her, she has the power to change, destroy, or create a new reality based on her inner desires and feelings. She is described in various ways; Yuki states that she has 'the potential for auto-evolution', Mikuru believes that she is the originator of a large time-quake and finally Itsuki declares her to be 'God'. Due to this, she is the main focus of the Integrated Data Entity, the Organization, and an organization of future humans.