|Series:||AKB48 Murder Mystery|
|First Appearance:||File 4|
|Last Appearance:||File 5|
|Number of Episode|
|3 (File 4-5 and|
|Kojima Haruna's Testimony|
- "Yuko… It’s a total shock. Speaking of which, I saw Yuko and Sasshi yelling at each other. In Renacchi and Yuko’s case too, wasn’t the first one to find them Sasshi? Isn’t that kind of suspicious?"
- ―Kojima Haruna's Testimonial[src]
Kojima Haruna (小嶋陽菜?), nicknamed Kojiharu (こじはる?), Kojinyan (こじにゃん?), and Nyan Nyan (にゃんにゃん?); is a member of AKB48's Team A. She is one of the primary characters in AKB48 Murder Mystery series. She is based on and is portrayed by Kojima Haruna.
Parts in the Story
All 1st Generation members were invited by Acchan to her new office: The Maeda Detective Agency. After revealing to the others that she knew that Acchan wanted to be a detective, Nyan Nyan and Tomochin said that it looks good on her. After Acchan got a call from their manager, they went to a duplex island owned by one of Akimoto Yasushi's friends for a CM Shoot. After their first day shoot was over, they went to their designated resthouse on the other island. When everyone of the 1st Gen Members were discussing with Takamina, Yuko sneaked behind Nyan Nyan to help her with her shoes. After Acchan arrived after being held back by the staff on the other island, they heard that Kato Rena was missing and was shocked to learn that the scream they heard was from Sashiko who found the girl's lifeless body in the dining hall.