TV-Series
Description
Fuuko Ibuki is a first-year student at Hikarizaka Private High School, though her physical age is the same as the protagonist Tomoya Okazaki. Shortly after her high school entrance ceremony, she was involved in a car accident that left her in a comatose state for years, during which she remained hospitalized in a deep sleep. While her body lay unconscious, her intense love and思念 for her older sister, Kouko, allowed her spirit to manifest at the school with the help of the Illusionary World's power, becoming known to students as a ghost or a spirit.

Physically, Fuuko is small and childlike, standing 150 centimeters tall with a slender build. She has long, dark brown hair tied near the end with a large blue ribbon and amber-colored eyes that often appear vacant but become much more expressive when she encounters starfish or other cute objects. In her spiritual form, she typically wears the school's autumn uniform with black pantyhose. After awakening in After Story, she is slightly taller and is often seen in casual clothes like a red coat.

Fuuko's personality is marked by a combination of childishness, stubbornness, and a vivid imagination. She has a strong belief in her own maturity and dislikes being treated like a child despite her very childlike behavior. Her speech is direct and honest, and she consistently refers to herself in the third person, speaking of herself as Fuuko. She is naturally shy and was initially very poor at making friends, feeling lonely and always hiding behind her sister. This past isolation makes her initial openness and later friendships all the more significant. Her most defining trait is an obsessive love for starfish and anything star-shaped, which can send her into a trance-like fantasy mode where she becomes oblivious to everything around her. She is a hard worker, especially when it comes to her wood carving, and is very stubborn in her views, even when presented with evidence to the contrary.

Fuuko's primary motivation during her appearance as a spirit is to ensure the happiness of her beloved older sister, Kouko. She dedicates herself to carving hundreds of wooden starfish to use as invitations, distributing them to students and staff with the request that they attend her sister's wedding. She persists in this goal despite the difficulty, as Kouko no longer works at the school and is not widely known. This project is not just about gathering attendees; it is her way of expressing her deep love and ensuring she can be present for her sister's special day, despite her physical condition.

Her role in the story is initially that of a catalyst, bringing together Tomoya and Nagisa Furukawa as they work to help her distribute her starfish invitations. Through this joint effort, she inadvertently helps to strengthen the bond between them, even pushing them to call each other by their first names. Fuko serves as a sort of surrogate child for Tomoya and Nagisa, with Nagisa even remarking that caring for her feels like being a mother and father. This experience prepares them, in a way, for their future as parents. Later, in After Story, after she awakens from her coma, she becomes a close friend and playmate to their daughter, Ushio, forming a unique and protective bond with her.

Key relationships define Fuuko's journey. Her relationship with her sister, Kouko Ibuki, is the most important, built on deep mutual love and devotion. Kouko cares for her constantly, postponing her own wedding to wait for Fuuko's recovery, while Fuuko's entire arc is driven by her desire to see her sister happy. Her friendship with Tomoya Okazaki is a playful one where he teases her mercilessly, but he also becomes her most steadfast supporter in achieving her goal. With Nagisa Furukawa, Fuko finds a gentle and empathetic friend who is deeply moved by her situation and offers unwavering help and comfort. The Furukawa family warmly welcomes Fuuko into their home, treating her like a member of the family. Later, her most significant relationship in After Story is with Ushio Okazaki, for whom she feels an immediate and strong affinity, possibly due to residual memories from the Illusionary World, and becomes her loyal and protective companion.

Fuuko undergoes a significant development from a lonely, isolated figure into a person surrounded by friends. As a spirit, she perseveres through rejection and the pain of slowly being forgotten as her physical condition worsens. People gradually lose the ability to see her, and even Tomoya and Nagisa briefly forget her existence before she appears one last time at the wedding to deliver her thanks and congratulations. After finally waking from her coma in After Story, she has no memory of her time as a spirit, but her personality remains unchanged. She now has the opportunity to live the life she missed, forming new friendships and finally reuniting with her sister. Her journey from a fading ghost to a living girl who can openly interact with the world represents a complete arc of recovery and connection.

Fuuko has several notable abilities. She is a skilled and incredibly focused wood carver, able to produce many detailed starfish-shaped carvings with a small knife, often working so intently that she cuts her fingers. Her most unusual ability is her manifestation as a spiritual entity projection of herself, solid enough to interact with the world and carve objects, but destined to be forgotten as her real body weakens. This spirit form is invisible to her sister. Finally, her perseverance and the wish made for her using a "Light Orb" ultimately allow her to make a full physical recovery from her coma, an outcome that is nothing short of miraculous within the context of the story.