Identity

• Real name: Eto Yoshimura (芳村 愛支)

• Human identity: Sen Takatsuki — a famous horror novelist

• Aliases: One-Eyed Owl (Sekigan no Fukurō), previously nicknamed "X" and "Owl" before her name changed as her reputation grew within the CCG

• Species: One-eyed ghoul, a human-ghoul hybrid

• Age: 24 during the original Tokyo Ghoul series, 26–27 in the :re era

• Height/Weight: 151 cm / 44 kg

• Rc Type: Ukaku

• Rating: SSS as the One-Eyed Owl, S as Eto

• Affiliation: Founder and leader of Aogiri Tree

Family

• Father: Yoshimura (the Non-Killing Owl, owner of the Anteiku coffee shop)

• Mother: Ukina, who died shortly after Eto was born

• Foster father: Noro, who raised her in the 24th Ward after she was separated from her birth parents as an infant

Appearance

Petite in build with long, usually messy green hair often piled into a careless bun — a look that contrasts with her widely acknowledged beauty and her strong resemblance to her late mother. While active within Aogiri, she wraps her body in bandages and wears a hooded cloak to conceal her identity. One of her eyes is a kakugan (ghoul eye), while the other remains a pale green.

Brief Background

Born from the forbidden relationship between Yoshimura and Ukina, Eto was hidden away for her safety after her mother was killed by the organization V. She grew up alone in the 24th Ward and resurfaced years later as a rampaging kakuja, killing numerous CCG investigators — the incident that cemented her reputation as one of the most dangerous ghouls alive. About a decade later she founded Aogiri Tree, all while secretly living a double life as the successful novelist Sen Takatsuki.

Powers

• Ukaku Kagune of exceptional strength and versatility, reshapeable into extra limbs, eyes, or mouths

• Kakuja with full retained consciousness — a rare feat, since most ghouls lose their sanity mid-transformation

• Extraordinary regeneration, capable of fully recovering even from severe bodily damage

• Superhuman speed, fast enough to move almost imperceptibly to her opponents

• Kagune detachment, allowing her to manipulate targets or even implant influence into other ghouls

Works as a Novelist

Ten works were published under the pen name Sen Takatsuki, including Dear Kafka (her bestselling debut) and King Bileygr (her final work, centered on a one-eyed ghoul named "Nameless" who leads a rebellion against the world that oppresses his kind) — a story that mirrors Eto's own hidden ambitions.