Futaba Shimamura is a martial artist and the owner of the bar-restaurant “Izakaya Futaba,” known for her powerful kicking techniques and her deep resentment toward her older brother Ichiyo Shimamura despite eventually joining the fight against Shocker.
Futaba Shimamura is the middle child in the Shimamura family.
She is the younger sister of Ichiyo Shimamura and the older sister of Mitsuha Shimamura.
She runs a small bar-restaurant called Izakaya Futaba, which serves as both her livelihood and her personal territory.
Although her siblings are directly involved with Shocker-related conflicts, Futaba initially refuses to believe that Shocker even exists.
Her life changes after a direct encounter with a Shocker monster.
This experience forces her to accept the reality of Shocker and pushes her to cooperate in the battle against them, even while she continues to harbor hatred toward Ichiyo.
Futaba’s defining emotional trait is her intense resentment toward her brother Ichiyo Shimamura.
She does not simply dislike him; she “extremely hates” him to the point that it shapes her entire life.
As a child and teenager, Futaba suffered severe bullying because of Ichiyo.
He constantly claimed that Shocker was real, and for loudly insisting on this, he was treated as a weirdo, which led to Futaba being ostracized as well.
From elementary through high school, Futaba was subjected to complete social exclusion by every student in her schools.
She was totally ignored by the entire student body, a form of bullying that left a deep emotional scar and solidified her hatred toward Ichiyo.
This history explains why Futaba stubbornly refused to believe in Shocker for so long.
For her, admitting Shocker’s existence felt like admitting that her brother had been right, which would mean her years of suffering were tied to a truth she had denied.
Even after she personally confirms that Shocker is real and decides to fight them, Futaba does not forgive Ichiyo.
She can stand on the same side in battle, but emotionally she keeps a hard wall between them.
Futaba’s relationship with Mitsuha Shimamura, her younger sister, is comparatively more stable.
However, Mitsuha stands between a hated brother and a stubborn sister, making the family dynamics complicated.
Futaba is the manager and proprietor of Izakaya Futaba, a casual bar-style eatery.
Her workplace is also a narrative hub, where underworld figures, regulars, and key allies sometimes cross paths.
The bar’s atmosphere allows her to gather information and observe people.
It is in this setting that she becomes involved in a plot that directly threatens her martial arts teacher.
Despite her rough background and combat skills, Futaba is also capable of running a business with discipline.
Her life as a bar owner shows a grounded side: handling customers, managing supplies, and maintaining the shop.
From an early age, Futaba trained at a martial arts dojo called Kotora’s Pit.
This dojo is led by a master known as Tiger Master.
Under Tiger Master’s guidance, Futaba developed a style centered on powerful, flexible kicking techniques.
Her footwork and leg strength are among her most distinctive combat traits.
Futaba’s martial prowess is so refined that she can fight on equal or better terms with her older brother Ichiyo even when he has already transformed.
This places her combat level in a range normally reserved for enhanced fighters.
Her training made her not just physically strong, but also highly disciplined and tactical.
She can read an opponent’s movements, respond quickly, and adapt under pressure.
The turning point in Futaba’s life comes from an overheard conversation at her own bar.
She realizes that a group of gangsters is hiring an assassin to kill her master, Tiger Master.
Alarmed, she decides to warn Tiger Master directly and goes to his home.
When she arrives, he is in the shower, and his trademark mask is off.
While waiting, Futaba ends up putting on Tiger Master’s mask herself.
At that exact moment, the assassin arrives, mistaking her for Tiger Master and forcing her into a sudden fight.
During the battle, Futaba discovers the assassin’s true identity.
He reveals himself as Spider-Man, one of Shocker’s spider-based monsters.
Spider-Man uses thread-like sticky secretions to trap Futaba.
She is captured and brought to the brink of being transformed into a monster herself.
Just before she can be turned into a monster, Futaba manages a desperate escape.
She slips out of her clothing, leaving her outfit stuck to the wall, and flees in only her underwear.
Futaba then jumps from the rooftop of the building.
She disappears into a crowded street below, using the dense crowd to lose the monster and escape.
This firsthand experience proves to her, beyond any doubt, that Shocker is real.
The shock of this revelation uproots her long-held denial and forces her to reevaluate everything.
After escaping from Spider-Man, Futaba accepts the reality of Shocker.
Rather than break down, she chooses to stand up and fight.
She decides to support those who are actively battling Shocker, including Tanzaburo Tojima and his allies.
Her experience and strength make her a valuable partner rather than just a bystander.
Futaba brings Tiger Master to help as a training partner for Tojima and the others.
With her dojo connections, she creates an environment where the anti-Shocker fighters can sharpen their skills.
Despite aligning herself with the same cause as Ichiyo, Futaba does not heal her emotional wounds.
Her hatred toward her brother remains intact; cooperation in battle does not equal reconciliation.
This tension makes her role complex and interesting.
She is both an invaluable ally and a person still wrestling with deep, unresolved family trauma.
Ichiyo is Futaba’s older brother and the original source of her suffering.
He publicly insisted that Shocker existed, and this belief turned him into a social outcast and, by association, made Futaba a target of total ostracism.
Futaba blames Ichiyo for the years of bullying she endured, from childhood through high school.
Even when she learns that his claims were true, the pain lingers, and forgiveness does not come easily.
In combat, Futaba can fight evenly or better than Ichiyo even after he transforms.
This creates a strange balance between them: she resents him, but she also matches him in strength.
Mitsuha is Futaba’s younger sister.
Futaba stands between Mitsuha and Ichiyo as the embittered middle sibling, adding emotional complexity to the Shimamura family.
Tiger Master
Tiger Master is Futaba’s martial arts teacher and the master of Kotora’s Pit.
Futaba’s loyalty to him is strong enough that she rushes to his home after overhearing a plot on his life.
Her attempt to protect Tiger Master directly leads to her confrontation with Spider-Man.
Through this event, her relationship with her master indirectly pushes her into the core conflict with Shocker.
Tanzaburo Tojima and Allies
Futaba supports Tanzaburo Tojima and his group by providing Tiger Master as a training partner.
She helps shape them into more effective fighters against Shocker.
While she shares their goal of battling Shocker, her motivations are colored by personal trauma and a desire for control over her own fate.
Her collaboration with them represents a turning point from denial to active resistance.
💬 Community Discussion
Talk about this anime with people who actually care.