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This article is about a character in Higurashi When They Cry.
MAJOR HIGURASHI SPOILER WARNING
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This article or section contains untagged major spoilers for the original Higurashi When They Cry and possibly the console-exclusive arcs. Readers who have not completed the main story are advised not to proceed further.


Ryunn-Ohc (リューン=オーク Ryūn-ōku), also known as Ryuuou (柳桜), is an artificial intelligence and weapon that serves as Hai-Ryun Yeasomul Jedha's partner. She appears exclusively in Kotohogushi-hen.

Profile

It is an "autonomous data aggregation" with a will of its own. It is not a living being, but a kind of super-integrated circuit consisting of several operators.

Developed by the Ryuun, it is an interdimensional transfer device called a Control Gate, or Lynos, and does not have a unique form.

(Translated from Entergram's Higurashi Hou website.)

Appearance

Ryuun-Ohc has no appearance to speak of, being a voice residing within a transport system located inside Onigafuchi Swamp. During combat she inhabits Hanyuu's sword and is capable of growing two extra prongs when Hanyuu invokes it.

Personality

Ryuun-Ohc speaks in a cold, dry tone, showing little emotions. In the past she rarely defied Hanyuu and only ever affirmed reports, but after some slight teaching and reprogramming, Ryuun-Ohc began asking questions and reprimanding her for things.[1]

Background

Ryuun-Ohc is one of many artificial intelligences created by the Ryuun to assist in their immigration to Earth. Ryuun-Ohc inhabits a Lynos, or phase transition device, within Onigafuchi Swamp and assists Hanyuu during missions by informing her of threats, providing advice and creating medicine and other materials.

It is later revealed that Ryuun-Ohc contains part of the personality of Hanyuu’s mother, the previous Yeasomul Jedha, who merged with Ryuun-Ohc upon her death.

Ryuun-Ohc's name is Ryuunish for "brethren linker." Riku later gives her the nickname Ryuuou.

Relationships

Overview

Hai-Ryun Yeasomul Jedha

Ryuun-Ohc has existed on Onigafuchi long before Hanyuu's birth. The two are telepathically linked, with Ryuun-Ohc used as a weapon during combat. Ryuun-Ohc ultimately is devoted to Hanyuu's happiness, at one point preventing her from committing an abortion because she believed she would be worse off otherwise.

Role in the Story

Kotohogushi-hen

After Hanyuu fends off a Grifys attack in Onigafuchi, Ryunn-Ohc begins repairing her sword and ponders that the attack may have been caused by a demonified Putus.

Hanyuu starts falling in love with Riku and discusses her conflicting feelings with Ryuun-Ohc. The system says she must be happy to act like a child after spending her early years doing nothing but training.

Hanyuu marries Riku and gets pregnant, but tries to abort her child fearing it will grow horns just like her. She attempts to synchronize with Ryuun-Ohc to do the deed, but the system won't allow her to. Ryuun-Ohc says Hanyuu is just making assumptions because she's afraid and believes she will be much happier this way. Hanyuu is confused at the system operating outside its programming.

Hanyuu gives birth to her daughter Ouka and brings her before Ryuun-Ohc to show her off. Ryuun-Ohc is pleased, but she reveals that she's reaching the end of her operational limit and will only be regulaed to being used as a eapon and creating medicine. Ryuun-Ohc also reveals she merged with the personality of Hanyuu's mother and kept it secret since she believed Hanyuu would rely on her constantly. Hanyuu informs her that Riku's nicknamed her Ryuuou, and Ryuuou gratefully accepts it before bidding Hanyuu farewell.

Hanyuu uses Ryuuou's functions to make medicine for Onigafuchi's residents when an epidemic spreads and later bestows her to Ouka so Hanyuu can be killed.

  1. Kotohogushi-hen Chapter 2
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