Shortcake
Song by Jun Koami, Satomi Kawasaki, and Yasushi Akimoto
"Shortcake" is the debut single of AKB48 member Yuki Kashiwagi. It was released on February 6, 2013 by Avex Group under its YukiRing brand, named after Kashiwagi's nickname Yukirin. Wikipedia
Composers: Yasushi Akimoto, Satomi Kawasaki, and Jun Koami
Lyricist: Yasushi Akimoto