Tsumugi Ryuukishibara is a female classmate of Souta Hatate in Class 1-F at Hatagaya Academy, a childlike-looking but ancient figure known as “Grandma” who serves as the school’s living encyclopedia in If Her Flag Breaks.
Tsumugi Ryuukishibara is one of Souta Hatate’s classmates and a long-established presence at Hatagaya Academy.
Although she looks exactly like a little girl, she is treated as an elder-like figure within the school.
She is widely known by the nickname “Grandma.”
Students say that if you have a problem related to the academy, asking her for help will lead to a solution.
She addresses students, including Souta and his friends, by calling them “young master.”
Even Mimori Seiteikouji, the student council president who should be two school years above her, is called that as well, and Mimori does not find it strange.
Tsumugi has the appearance of a young child, which sharply contrasts with her old-fashioned speech and mysterious background.
Her manner of speaking gives the impression of an elderly woman.
Her fashion sense is highly unusual and distinctive.
She wears her school uniform fastened with the sash of a traditional robe, and she does not wear a skirt underneath.
She is also described as having a childlike appearance while being notably well-endowed.
This adds to her striking and unconventional visual identity.
Tsumugi is regarded as the academy’s living encyclopedia.
Whenever trouble arises within the school, people often turn to her for answers.
She has remained at Hatagaya Academy without ever graduating.
This has made her into a near-legendary fixture of the school.
Her presence predates even the founding of the academy, or so it is implied.
That history gives her an almost mythic status among the students.
Despite her small appearance, Tsumugi carries herself like a seasoned elder.
She feels less like an ordinary student and more like a guardian of the academy’s hidden history.
Her interactions with others are memorable because of the way she speaks to everyone as if they were children under her care.
This creates a humorous but oddly natural dynamic with the rest of the cast.
Tsumugi’s true identity is Alicia Dragoon, the number two member of the Seven Virtues Institute.
Before Mei Daimyōzamurai was sent, Alicia had already been dispatched to Hatagaya Academy to monitor Souta Hatate.
However, her memories were stolen by Sacramento.
She was then sent into the world of the past and became a being bound to Hatagaya Academy.
That is the reason she never graduates and continues to remain there.
Her endless stay at the academy is tied directly to this fate.
As Alicia, her appearance is that of a beautiful woman with long reddish-brown hair.
In the virtual world, that form reflects her at her peak.
Tsumugi’s childlike form is actually her original appearance.
In other words, the form known as Tsumugi is not a disguise but her true self.
Her weapon is a spear named Brionac, which she stores in an alternate space.
This gives her a much more formidable side than her usual demeanor suggests.
Shortly before Souta discovers the truth of the world, Tsumugi regains her memories.
After that, she joins the battle against the Angel Liner.
In the real world, she becomes one of the rare people who knows what happened in the virtual world.
Even there, her age remains unknown.
Her voice is performed by Aki Toyosaki.
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