- Akimoto Yasushi
- Inoue Yoshimasa
- Other Information
- Arrangement: Inoue Yoshimasa
Artist: Team H
- (Center: Kojina Yui)
- HKT48 Team H: Akiyoshi Yuka, Anai Chihiro, Inoue Yuriya, Ui Mashiro, Ueno Haruka, Umemoto Izumi, Okamoto Naoko, Kojina Yui, Komada Hiroka, Sakaguchi Riko, Sashihara Rino, Tashima Meru, Tanaka Natsumi, Tanaka Miku, Matsuoka Natsumi, Yamada Marina, Yamamoto Mao, Wakatabe Haruka
- HKT48 Team H / AKB48 Team K: Kodama Haruka
- HKT48 Team H / AKB48 Team B: Yabuki Nako
There are currently two versions of "Buddy" to be found in HKT48's discography. These versions are:
- Buddy (Original)
- Found on the Type-A edition of the "Shekarashika!" single as track #3.
- Buddy (Instrumental)
- Found on the Type-A edition of the "Shekarashika!" single as track #6. This is the standard version without the main vocals.