__Height:__ 149 cm

A first year student at Rokukeikan Academy and, by extension, [Keisuke](https://anilist.co/character/75502)'s kouhai. Rika also belongs to the same astronomy club as [Kanae](https://anilist.co/character/54181) and him. Somewhat spoiled, a cry-baby, and sociable, she’s viewed as something like a mascot and beloved by her fellow classmates. She has a personality of an innocent girl with the heart and soul of a younger child which makes her the most vulnerable victim of the Game. While normally bright and enthusiastic, her cheerful demeanor is easily spoiled as she is often the target of teasing and mockery by [Nemu](https://anilist.co/character/54179/NemuManaka). Her overemotional nature, prone to tantrums and tears, will give her the most difficulty in adjusting to the cruel and twisted trials of the Game.

Based on the erotic game by Clock Up. 
 
They wake up in a white room remembering nothing&mdash; 
 
The protagonist Takato Keisuke and 6 others are locked up in these hidden white rooms. His childhood friend Hokari Kanae, classmate Ando Miyako, underclassmate Mikaba Rika, English teacher Aoi Natsuki, same year Byakuya Rinne, and classmate Manaka Nemu. While still confused about their unusual situation, a "mystery voice" suddenly speaks to them: "A game has now started. In order to escape the room, Keisuke is the "unlocker" and one heroine the "keyhole". With an assigned act, he must "use the key". 
 
After hearing the unreasonable and immoral requirements to win, Miyako gets pissed and snaps on the "mystery voice". Suddenly the lights go out. The girls scream. The lights come back on, reilluminating the white room. They can see Miyako bound to a grotesque torture device. 
 
"Anyone who quits the game will die." 
 
Her screaming begins in tandem with the electrical current. With eyes wide open in fear, she pisses and shits herself. Everyone else starts freaking out. However, Keisuke seemed to be getting aroused by Miyako&rsquo;s appearance. That was his secret, his urge to assault and humiliate girls. 
 
However, Nemu could see right through him and knew. Nemu takes advantage, forcing the protagonist to submit to him as she brings her lips up to his: "This is a contract kiss." 
 
Keisuke was surprised by Nemu&rsquo;s behavior but he wants to protect Kanae and decides for the sake of escaping, he will violate the others. Can Keisuke escape the white rooms and return to his normal life? Or will he hold back his own dark urges? 
 
(Source: Necrosis)

[Blog](http://blog.livedoor.jp/f_yukina/) | [Twitter](https://twitter.com/yukinko_info) | [Wiki (jp)](https://ja.wikipedia.org/wiki/%E8%97%A4%E6%A3%AE%E3%82%86%E3%81%8D%E5%A5%88) | [Wiki 2 (jp)](https://ja.wikipedia.org/wiki/%E9%AB%98%E6%A9%8B%E3%81%8B%E3%81%AA)

She is a former eroge voice actress and singer who was affiliated with Rock 'n' Banana. She was also a member of the vocal duo Shuna along with [Akane Sanada](https://anilist.co/staff/115673/).

Note: Voiced [Miyuri Asou](https://anilist.co/character/125500) in the digital version of the animated adaptation of [dokidoki Little Ooya-san](https://anilist.co/anime/101240).

Based on the erotic game by Clock Up. 
 
They wake up in a white room remembering nothing— 
 
The protagonist Takato Keisuke and 6 others are locked up in these hidden white rooms. His childhood friend Hokari Kanae, classmate Ando Miyako, underclassmate Mikaba Rika, English teacher Aoi Natsuki, same year Byakuya Rinne, and classmate Manaka Nemu. While still confused about their unusual situation, a "mystery voice" suddenly speaks to them: "A game has now started. In order to escape the room, Keisuke is the "unlocker" and one heroine the "keyhole". With an assigned act, he must "use the key". 
 
After hearing the unreasonable and immoral requirements to win, Miyako gets pissed and snaps on the "mystery voice". Suddenly the lights go out. The girls scream. The lights come back on, reilluminating the white room. They can see Miyako bound to a grotesque torture device. 
 
"Anyone who quits the game will die." 
 
Her screaming begins in tandem with the electrical current. With eyes wide open in fear, she pisses and shits herself. Everyone else starts freaking out. However, Keisuke seemed to be getting aroused by Miyako’s appearance. That was his secret, his urge to assault and humiliate girls. 
 
However, Nemu could see right through him and knew. Nemu takes advantage, forcing the protagonist to submit to him as she brings her lips up to his: "This is a contract kiss." 
 
Keisuke was surprised by Nemu’s behavior but he wants to protect Kanae and decides for the sake of escaping, he will violate the others. Can Keisuke escape the white rooms and return to his normal life? Or will he hold back his own dark urges? 
 
(Source: Necrosis)

Rika Makiba