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Tokyo Ghoul Wiki

The Black Goat's Egg book cover.

The Black Goat's Egg (黒山羊の卵, Kuro Yagi no Tamago) is the seventh work of Sen Takatsuki.


The story centers around the relationship between a young man and his mother, a brutal serial killer known as the "Black Goat". Though he is disgusted by his mother's cruel actions, he begins to discover the same depraved impulses exist within him as well. It focuses on graphic descriptions of violence, as well as an exploration of the protagonist's mental state.


Role in the Series[]

The novel plays a key role in Ken Kaneki asking Rize Kamishiro on a date, after noticing that they were both reading it. This fateful event leads to the Steel Beam Incident, and Kaneki's transformation into a one-eyed ghoul. Afterwards, he compares his situation to that of the novel's protagonist, with Rize as the titular "Goat" of the story.

Ken Kaneki's mother abused him as a child, extending the parallel to their relationship as well. A victim of her violence and neglect, Kaneki struggles throughout the series with the same violent impulses.


  • Mother: "In this room, you must not love anyone."[1]
  • "My dear lacking one, your parents failed in raising you."[2]