[Manga] Shakugan no Shana (Complete)

Summary: Centering around Yuji Sakai, an ordinary Japanese high school boy who inadvertently becomes involved in a perpetual war between forces of balance and imbalance in existence. In the process, he befriends the title character: a fighter for the balancing force, whom he takes to calling "Shana". The series incorporates science fiction, fantasy, and slice-of-life "school days" elements into its tale.