07th Expansion Wiki
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This article is about a character in Higurashi no Naku Koro ni.

Kihiro Ryuugu (竜宮 希比呂 Ryūgū Kihiro) is one of the main protagonists of Higurashi no Naku Koro ni Rei. He is Rena Ryuugu's son.


Rena's son. He is in the same class as Keitarou, and they are especially close.

(Translated from the Hoshiwatashi website).


Kihiro has short orange hair and light blue eyes. He wears a white button-up shirt and black pants.


A young Kihiro and his mother

Kihiro is the son of Rena Ryuugu and an unnamed man. Rena moved out of Hinamizawa when she got married, but got divorced and moved back to the village with Kihiro. Kihiro grew up with Keitarou as his best friend and now attends the Okinomiya middle school with his friends.


Kihiro is sharp and intuitive. He has a habit of yelling that things are lies whenever he's pranked or tricked, but it usually takes him some time to register them. Kihiro will not hesitate to hit his friends if they do stupid things, inheriting his mother's extreme punches.

Kihiro tends to get flustered when around Keitarou and seems to refer to him with a cutesy nickname, calling him "Keitarou" in katakana (ケータロ).


Role in the Story

Higurashi no Naku Koro ni Rei


Keitarou scares kihiro.png

Kihiro is introduced walking to his usual meetup spot with his friends when a hiding Keitarou surprises him from behind. They join Tamaki and Sakiko, and when Tamaki suddenly gropes Keitarou because of Sakiko's prompting, Kihiro punches Sakiko in the face as punishment.

After school, Kihiro watches as Keitarou makes a new friendship with Kururu. The group reunites, and Kihiro's tone turns serious as he tells Keitarou that they need to talk about the children in Hinamizawa. Sakiko also turns serious and says the village changed because of them.


  • Kihiro's surname was left unknown during the initial announcement of Higurashi Rei.
  • Natsumi Kei's design for Kihiro was inspired by pictures of a young Björn Andrésen.[1]