- This article is about the character "Shizue Izawa". You may be looking for the anime episode titled "Shizu".
She is also known as the "The Conqueror Of Flames," an A+ ranked Adventurer of the Free Guild's Headquarters and the former homeroom teacher of the Freedom Academy's S Class students.
Shizue is a young woman of average height with blue eyes and black hair, and a red burn mark under one of her eyes. Shizue explained that despite her youthful appearance, internally she was still aging, which is because she was not in harmony with Ifrit, but rather opposed to him, as well as her using her Unique Skill Degenerate to remain human as much as possible instead of letting herself be turned into longer-lived majin.
Information to be added later.
In her original world, she had no relatives and lived alone with her mother. Her father was drafted, and she couldn't recall his face. Feeling neither blessed nor unfortunate, she had no choice but to accept it.
She was injured during the Bombing of Tokyo during World War II. She was four at the time. Although she was summoned to this world during the bombing, it was not before she was badly burned. As she arrived, it was thus revealed that Demon Lord Leon Cromwell was responsible for summoning her. At first, he considered her existence a waste, a mere loss of a failed summoning attempt of Chloe Aubert. However, her fire affinity seemingly made him change his mind.
Leon reconsidered her value to him and then called forth the Flame Giant Ifrit. He then had Ifrit possess Shizue's body. In truth, he did this to prevent the collapse of her body under the rampaging magic from the summoning. Thus, this possession enabled her to stay alive from both her burn injuries and her unstable magicules from being summoned as a child.
As a majin of flames, she became an aide for Leon who was occupying Kazaream's castle at the time. When the Hero Chronoa invaded, Leon fled, abandoning his castle. She was left as the rear guard, which Shizue thought to mean she was thrown away by the Demon Lord, but Leon actually hoped, based on the information he gathered, that the Hero would take along Shizu.
Ifrit knew it couldn't win against the Hero before it, and when that thought overpowered Ifrit's minds, a small fraction of the Shizue's ego had returned. The Hero, who was actually Hinata's in control of Hero Chronoa's body, took her in and mentored her, like how she remembered Shizu would do for Hinata in the future. To control Ifrit, the Hero handed Shizue the Anti-Magic Mask.
However, the Hero left on a journey one day. Since then, Shizue went on to be an adventurer of her own and became a Champion known as the "Conqueror of Flames".
Sometimes called one of the founders of the Free Guild, she had worked for the expansion and benefit of the Adventurer Cooperation Union. She also took part in training adventurers and her successors. At one time, she had taught two exceptionally excellent students, Yuuki Kagurazaka and Hinata Sakaguchi.
After the Adventurers Cooperation Union had formally changed its name to Free Guild, Yuuki introduced the current ranking system. As a result of it, casualties during subjugation missions greatly decreased. Shizue began supporting Yuuki behind the scenes. Due to no longer being able to contain Ifrit, she had to retire from being an adventuring and focused on being a teacher instead.
Over time Shizue was even less able to contain Ifrit, Thus, she decided to set off to find Leon one more time to find out the method with which Leon saved Shizue as a summoned otherworlder child so that she can apply the same method to save her 5 current students.
In the Kingdom of Blumund, via her connection to Franz, Blumund Guildmaster Fuze's father, it got arranged that she'd be traveling together with Kaval's party into the Great Fores of Jura.
At the moment her life force finally ran out, Ifrit took over her consciousness. After Rimuru defeated Ifrit, Shizue's consciousness returned for a short time. Her last request was for Rimuru to put her to rest within himself, to make known to Demon Lord Leon Cromwell acknowledge her existence, and to save the children.
Much later, during the fight with Granbell, fragments of what remained of Shizue's soul appeared in the conceptual space that Rimuru used to save Chloe, with Shizue giving her last words.