The episodes are based on the light novel series of the same name written by Yashichiro Takahashi, with illustrations drawn by Noizi Ito.
The story follows Yuji Sakai, a high school boy who inadvertently becomes involved in an age-old conflict between forces of balance and imbalance in existence.
While Geneon still retains the license, Funimation assumes exclusive rights to the manufacturing, marketing, sales and distribution of select titles.
A four-episode OVA series titled Shakugan no Shana S was released on BD/DVD from October 23, 2009, to September 29, 2010.
[23][24][25] The 24-episode third season, titled Shakugan no Shana Final (灼眼のシャナIII -Final-),[26][27] aired between October 8, 2011, and March 24, 2012, on Tokyo MX, and aired at later dates than Tokyo MX on Chiba TV, TV Kanagawa, MBS, CBC, AT-X, and BS11.
[30][31] A series of 15 bonus shorts depicting Shana super deformed under the collective title Shakugan no Shana-tan were also released.
[32] A similarly themed short featuring Hecate was released on a DVD bundled with the Anime Shakugan no Shana no Subete guide book.
[33] Another short was released with the Shakugan no Shana SP OVA, and one featuring Wilhelmina was shown in Japanese theaters with the film.