Yukirin has long slightly wavy somewhat puce hair that goes to her waist in whch the tips are somewhat curled, violet eyes, and a white headband with a white ribbon on it. Like all members of AKB0048, she has a heart-shaped lining on her hair and eyes.
4 years later, Yukirin and the rest of AKB0048 appeared on a hologram card that Yuka had received, telling them how to do the auditions.
Later, Yukirin and the rest of AKB0048 came to the rescue of the auditioners when the DES took over a ship in order to search and capture the auditioners. They managed to rescue the auditioners, defeat the DES and making an escape on their ship before the DES could catch them.
Yukirin makes an appearance in Episode 3, alongside Takamina advising the auditioners on how to use the showers.
In Episode 5, Yukirin warns Suzuko and Sonata that AKB0048 members are not allowed to investigate into who Sensei Sensei is. When Suzuko asks why, she tells them they will lose their belly buttons, which Sonata gullibly believes.
In Episode 6, Yukirin joins Takamina and Sayaka to teach the girls about image and personality. She generously offers the trainees the use of her clothes, but Sayaka warns the trainees that she and Takamina are the "Twin Towers of Bad Fashion." Yukirin looks embarassed and blushes.
In Episode 7, Yukirin is present during the dance practice rehearsals. After one such rehearsal, she joins Takamina, Mayuyu, and Yuuko in following Tsubasa to the shrine next to the AKB0048 stadium. Once inside, Yukirin is shown the image of her original predecessor along with the other girls. After hearing the news that Takamina will soon graduate and be replaced as team captain by Kanata, Yukirin refuses to have anything to do with it, yelling at Tsubasa and running after Takamina.
Yuki Kashiwagi was born on July 15, 1991. She joined AKB48 in 2006 as a member of the 3rd Generation and is part of Team B since her debut. She is a skilled player of the trombone. She is part of AKB48's Sub-Unit French Kiss with Aki Takajo and Asuka Kuramochi and has a solo career She is known for her overreactions. She is good friends with Mayu Watanabe (MaYuki) and Sae Miyazawa (SaeYuki). She ranked #2 in this year election.