
Shakugan no Shana
Murdered by a demonic being, 15-year-old Yuji Sakai has his life force replaced by a flame that dims with each day. When the flame dies, no one will remember he was ever alive. This is how he meets Shana: a warrior with a burning sword, and the will of a god as her guide. The two form a bond as Yuji becomes Shana’s accomplice in her battles to keep the balance between the ordinary world and hers.
It was a normal day in the life of Sakai Yūji, a 15 year-old highschool student, but then all of a sudden his life changed. When a Monster called "Guze no Tomogara" attacks him and everyone around him, turning them into blue flames and consuming them, Yūji's life gets saved by the Flame-Haired Burning-Eyed Hunter. A girl in a black coat, flaming red hair and a long sword, whom he would later name Shana. Confused and seeking answers Yūji follows the girl and finds out the harsh truth about everything around him.
The girl with flaming hair uncovers the truth about the world that Yuuji is living in. He learns that he is already dead, and is only lasting until his flame burns out. As he watch his classmate's flame about to burn out, Yuuji felt useless for doing nothing and wants to help. He tries his best in making an effort of giving her a good time before she leaves...
Yuuji gave the "Flaming-hair" girl a name, and that name is "Shana". The next day, Yuuji went to school looking all depressed. He heard his friend talked about the girl that disappear yesterday and became excited because his friend remembers her. Everything changed when the classroom was attack by a Tomogara. Suddenly, Shana came out of nowhere. In order to save the people around him, he must sacrifice some of his torch power to turn everything back to normal. But will Yuuji do so?
Yuuji and Shana seem to be getting along well and she unexpectedly sleeps over, in his room. The problem is that Shana starts to feel differently about this Torch (Yuuji) than any other, could she be developing feelings for him? Meanwhile, another Flame Haze arrives in the city. What is this person's motive?
Shana manages to return all beat-up from her previous battle with Margery Daw, and she's way too angry to receive help from the concerned Yuuji. Because there's nothing he can do, Yuuji goes to school, only to be greeted by a girl, Kazumi who asks him out on a date. However, on their date, Yuuji runs into a mysterious man who's been erasing Torches.
Shana has come to the conclusion that Yuuji is restricting her role as a Flame Haze and is forced to make terrible decisions. Just when she is about to carry out her decision, Friagne begins to make his move on his City-Devouring plans. Can he be stopped in time?
Margery Daw and Marchosias continue to search for Rammie, with Shana and Yuuji right behind them. As they continue to chase Margery, Shana and Yuuji hope to give Rammie a chance to get out of Misaki and to allow him to travel some place farther. Yuuji also wants to fight alongside with Shana. With that, Shana begins to train him for future battles.
Due to it being so hot outside, Hayato Ike hands out tickets to a water park and ultimately it's decided that Yuuji and his friends go there after school. Once there, Margery Daw unexpectedly shows up, though Shana can't sense any intent to kill.
Yuuji's training is not going so well so Shana wants to increase the level by creating a Fuzetsu one day after school. However, school business with the student council doesn't allow him to do this, so Shana gets angry at him. Also, another Rinne appears.
After seeing Yuuji and Shana together at the river one night, her feelings for Yuuji are hitting the breaking point until she finally confronts Yuuji about it. Suddenly, the two sibling Denizen show themselves and Shana rushes into battle.
Back before Shana became a Flame Haze, she was living in a large castle-like structure floating in the sky along with Alastor and a maid who cares for her. One day, a Denizen attacks the maid, whose name is Wilhelmina Carmel, who also happens to be a Flame Haze.
With Tendo-kyu, the castle Alastor and Shana resided in, destroyed, the time has now come for Shana to finally become the Flame-Haired Scorching-Eyed Slayer. However, she must first enlist the help of Tenmoku Ikko, a very powerful Mystes.
Wilhelmina arrives in Misaki and meets up with Shana again. Meanwhile, Margery Daw finally leaves Misaki without saying goodbye to either Eita or Keisaku. Also, Wilhelmina comes to the conclusion that Yuji must be destroyed in order to protect the balance of the world.