TV-Series
Description
Itsuki Inubozaki is a first-year middle school student and one of the central members of the Hero Club. She is the younger sister of Fu Inubozaki, and her family history is marked by tragedy, as their parents, who were workers for the mysterious organization known as the Taisha, were killed during a Vertex attack two years prior to the story. Consequently, Itsuki's older sister Fu serves as her legal guardian.

In terms of personality, Itsuki is naturally shy and timid, presenting a stark contrast to her more forceful and outgoing older sister. Despite her reserved nature, she is deeply kind-hearted and enjoys assisting others. Within the safety of her close circle, particularly when reacting to Fu's more eccentric statements, she can display a subtle, snarky sense of humor. Itsuki is also notably self-conscious about her petite physical stature and her quiet disposition, harboring a secret but powerful desire to stand beside her sister as an equal rather than remaining perpetually in her shadow.

A significant aspect of Itsuki's character is her passion for singing. She is a highly talented vocalist who aspires to become an idol singer, yet her shyness initially makes performing in front of others a daunting challenge. This aspiration is a key part of her personal motivation, representing her struggle for independence and self-confidence. The Hero Club plays an essential role in nurturing this dream, as the members' encouragement helps her overcome her stage fright to deliver a confident performance for a school test. Beyond singing, she also possesses a talent for fortune-telling, particularly using tarot cards, which is considered surprisingly reliable.

Itsuki's role in the story is intimately tied to her relationship with her sister and her growth as a Hero. She joins the Hero Club without protest, trusting Fu's leadership implicitly even before understanding the true, dangerous purpose of their battles against the Vertex. Her primary role in combat is supportive and tactical. As a Hero, she is granted the power of fairies. Her first fairy, Kodama, manifests as a ring on her wrist that allows her to fire magical vines capable of ensnaring or slicing through enemies. Her second fairy, Ungaikyou, allows her to conjure multiple shields of green light for defense. When she unleashes her full power in a state called Mankai, her ring attaches to her back and expands massively, granting her the ability to summon hundreds of these vines for wide-area control and attack, such as creating nets to catch falling allies. However, using this ultimate power comes at a great cost known as Sange, a sacrifice demanded by the divine tree, Shinju. After activating her Mankai in a critical battle, Itsuki permanently loses her ability to speak.

This sacrifice profoundly impacts her development. Losing her voice, which is intrinsically linked to her dream of singing, does not break her spirit. Instead, she adapts by communicating through a notepad and continues to support her friends, expressing only gratitude toward the Hero Club for their companionship. This trial forges a new kind of strength in her, and she later demonstrates remarkable resilience and a level head in crises, even as other members struggle with the psychological toll of their duties. Her growth is recognized at a pivotal moment when she ultimately succeeds her sister as the president of the Hero Club.

Itsuki's key relationships are the foundation of her character. Her bond with her older sister Fu is the most significant. She loves and admires Fu dearly, feeling safest when near her, yet she actively works to stand by Fu's side as a partner rather than remaining behind her as a dependent. She is fiercely loyal, stating she will follow her sister anywhere. With her senior, Yuki Yuna, she shares a warm, admiring friendship. She gets along well with the often-peculiar Mimori Togo, though she finds her behavior occasionally bewildering, yet she is not afraid to stand against Togo when necessary and holds no lasting resentment afterward. The relationship with fellow hero Karin Miyoshi develops in a unique direction; unlike others, Karin is not annoyed by Itsuki, and the two share many comedic moments, bonding over their shared lack of confidence in cooking and their flat-chested complexes, with Karin even admitting she would like to have Itsuki as a little sister.
Cast