Шифр (2021)

The battle between Margery Daw and Shana has finally begun while the fate of the entire city rests in the balance. What can Yuuji do to help Shana victor the battle?

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.

Shana's feelings towards Yuuji are growing stronger and now Shana asks Yuuji's mother for advice about the meaning of a kiss. Also, two more Denizen are on a search for Shana.

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.

Shana finds a way to somehow get out of the clutches of the two incestuous Denizen during their battle. Meanwhile, Yuuji gets help from Margery Daw to help destroy them as well.

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.

Now that she's become a Flame Haze, Shana must defeat Tenmoku Ikko and take his sword - Nietono no Shana.

The Misago Festival is coming soon and Kazumi has made up her mind to confess her feelings there. However, she meets a new Flame Haze who tells her the truth about the world.

When Yuji doesn't come home after school on the day of the festival, his mother and Shana go to the festival to look for him but before long another Denizen shows itself. Also, Kazumi discovers the truth that Yuji is indeed a Torch.

The Seeking Research Denizen has already started his plan to open up a gate to another dimension and now all three Flame Haze must work together to defeat him.

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.

Shana is able to persuade Wilhelmina, at least for now, to not destroy Yuji, who has finally decided to leave Misaki in order to protect it. Later at the bonfire which burned much of the decorations from the festival, a spell is activated.

After getting heavily injured, Shana must recover in the care of Wilhelmina. Meanwhile, Hecate begins to synchronize with the Reiji Maigo residing within Yuji.

While fighting within the Seirei-den, a spell is cast which drains their power of existence for a time, however, Margery Daw comes back and destroys the spell. Ultimately, it is now up to Shana to decide the fate of Yuji.

After managing to defeat Hecate, the city is about to be destroyed regardless. However, there is one final plan, though Shana's life may be on the line if it succeeds.