Oyashiro Rika

Concept
Oyashiro Rika is a magical girl shown in the second episode of the anime "Higurashi no Naku Koro ni Kira". The episode is tittled "Ayakashisenshi-hen" (妖戦し編, "Demon Battling Chapter") and is all dedicated to Oyashiro Rika story. All the characters of "Higurashi no Naku Koro ni Kira" wake up in a parallel world and the protagonists become magical girls related to the original Oyashiro Rika (Oyashiro Rika and Tramp Satoko). Before and after this episode nothing related to the Magical Girl Genre is shown.

Appearance in Higurashi no Naku Koro ni Kira
Episode 2: "Ayakashisenshi-hen" (妖戦し編, "Demon Battling Chapter")

Airdate: September 22, 2011

In this arc Rika accidentally ends up in an alternate world along with Satoko. While it seems like a completely different world, the world of Ayakashisenshi-hen overlaps with the situation in Rika's world.

The Magical Girl Oyashiro Rika transforms and fights against the four evil generals of the secret magic society Tokyo Magika (Teppei, Takano, Okanogi, and Takagi.She tries to saves her friend Satoko but is trapped by the enemy. Rika wake up and everything seems to have been a dream.

While Rika and Satoko are being chased by some mysterious monsters the problems keep growing: a number of demonic ritual tools and a mysterious fog falls on Hinamizawa makes the villagers become hostile towards those unaffected.

Rika and Satoko meet a fairy called Hanyuu who help Rika to transform into Oyashiro Rika and fight the monsters. When Rika is in danger, Satoko tries to protect her and gains the ability to tranform into Tramp Satoko. The two magical girls join forces and save their friends and the people of Hinamizawa.