- Tsuyoi Hana (強い花; Strong Flower)
- Akimoto Yasushi
- Tanaka Shunsuke
- Other Information
- Arrangement: Nonaka "Masa" Yuichi
Artist: Kenkyuusei (研究生)
- Kenkyuusei: Aigasa Moe, Iwatate Saho, Uchiyama Natsuki, Umeta Ayano, Omori Miyuu, Okada Ayaka, Okada Nana, Kitazawa Saki, Kojima Mako, Sasaki Yukari, Shinozaki Ayana, Takashima Yurina, Nishino Miki, Hashimoto Hikari, Hirata Rina, Maeda Mitsuki, Murayama Yuiri, Mogi Shinobu
There are currently two versions of "Tsuyoi Hana" to be found in AKB48's discography. These versions are:
- Tsuyoi Hana (Original)
- Found on the Theater edition of the "So long!" single as track #3 and the Tsugi no Ashiato album as track #4 on Disc 1.
- Tsuyoi Hana off vocal ver.
- Found on the Theater edition of the "So long!" single as track #6. This is the standard version without the main vocals.
- STUDIO48: "Tsuyoi Hana" lyrics