Shakugan no Shana S is a oVA anime that premiered in fall 2009.

About the production: the story comes from a light novel, there are 4 episodes of about 28 minutes and its current status is "finished".

Its main genres are action, comedy, fantasy and romance, with themes such as Tsundere, Super Power, Urban Fantasy and Female Protagonist.

On AniList, Shakugan no Shana S has an average score of 71%, a good score, and appears on 18,109 users' lists.

The franchise continues in or follows from: Shakugan no Shana II (Second) and Shakugan no Shana III (Final).

A 4 episode OVA series. Every episode will involve different side stories from the original source material. Episode 1 - Reshuffle: Due to the effect of Friagne's treasure device, the bodies of Shana and Yuji are swapped. They try to overcome the situation secretly, but... Episode 2 - Domicile: Recently, Shana has been acting strangely. Worried about her well-being, Yuji and Wilhelmina decide to follow her from the shadows after school one day. What secret could Shana be hiding? Episode 3 - Overture (Part 1): While hunting for a certain tomogara, Shana steals the existence of a torch named Oogami Junko in order to make her investigation throughout the city easier while also dealing with the family problems left behind by Junko when she was devoured. Episode 4 - Overture (Part 2): Continuation of episode 3.

Official synopsis from AniList.