- Ushinaitakunai Kara (失いたくないから; Because I Don't Want to Lose)
- Akimoto Yasushi
- Ebihara Lance
- Other Information
- Arrangement: Shiokawa Mitsuki
- 1st gen: Ikuta Erika, Ikoma Rina, Ichiki Rena, Inoue Sayuri, Kawamura Mahiro, Saito Asuka, Saito Yuuri, Sakurai Reika, Shiraishi Mai, Takayama Kazumi, Nagashima Seira, Nakada Kana, Nakamoto Himeka, Nishino Nanase, Noujo Ami, Hatanaka Seira, Hashimoto Nanami, Fukagawa Mai, Hoshino Minami, Matsumura Sayuri
There are currently two recorded versions of "Ushinaitakunai Kara" found in Nogizaka46's discography. These versions are:
- Ushinaitakunai Kara (Original)
- Found on the Type-C edition of the "Guruguru Curtain" single as track #3.
- Ushinaitakunai Kara off vocal ver.
- Found on the Type-C edition of the "Guruguru Curtain" single as track #6. This is the standard version without the main vocals.