| Biisan wa Naze Naku Naru no ka? | |
|---|---|
| Released: | June 22, 2022 |
| Genre: | J-Pop |
| Format: | CD Single, CD+DVD |
| Label | EMI Records/Universal Music Japan |
| Producer | Akimoto Yasushi |
| Promotional Image | |
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| HKT48 Singles Chronology | |
| Previous: Kimi to Doko ka e Ikitai 14th Single (2021) |
Next: Kimi wa Motto Dekiru 16th Single (2023) |
Biisan wa Naze Naku Naru no ka? (ビーサンはなぜなくなるのか？) is the 15th single released by HKT48.
Single Tracklist Details[]
CD Tracklist[]
- Biisan wa Naze Naku Naru no ka? (ビーサンはなぜなくなるのか？) / Senbatsu
-
- [Type A] Himawari no Suisaiga (向日葵の水彩画) / Undergirls
- [Type B] Juubun, Shiawase (充分、しあわせ)
- [Limited/Theater] Kanashimi no Jouka Souchi (悲しみの浄化装置) / Mogami Nanaka
- Biisan wa Naze Nakunaru no ka? (off-vocal)
-
- [Type A] Himawari no Suisaiga (off-vocal)
- [Type B] Juubun, Shiawase (off-vocal)
- [Limited/Theater] Kanashimi no Jouka Souchi (off-vocal)
DVD Tracklist[]
- Biisan wa NAze Naku Naru no Ka? Music Video
-
- [Type A] Biisan wa Naze Naku Naru no ka? Music Video (Making-of)
- [Type B] 6th Generation Audition Documentary Video (６期生オーディション ドキュメント映像)
Included Members[]
"Biisan wa Naze Naku Naru no ka?"[]
★ Senbatsu (選抜) (16 Members) (Yabuki Nako Center)
- Team H: Tanaka Miku, Toyonaga Aki, Matsuoka Natsumi, Yabuki Nako, Watanabe Akari
- Team KIV: Ishibashi Ibuki, Ichimura Airi, Unjo Hirona, Takemoto Kurumi, Jitoe Nene, Motomura Aoi
- Team TII: Imamura Maria, Oda Ayaka, Sakai Moeka, Takeda Tomoka, Matsuoka Hana
"Himawari no Suisaiga"[]
Undergirls (アンダーガールズ) (13 Members) (Fuchigami Mai Center)
- Team H: Akiyoshi Yuka, Kojina Yui, Sakaguchi Riko
- Team KIV: Shimono Yuki, Fuchigami Mai
- Team TII: Aramaki Misaki, Kurihara Sae, Sakamoto Erena, Hokazono Hazuki, Miyazaki Sono, Murakawa Bibian, Yamauchi Yuna, Yamashita Emiri
"Juubun, Shiawase"[]
(14 Members) (Watanabe Akari Center)
- Team H: Ito Yueru, Kawahira Hijiri, Kuriyama Rina, Sakamoto Rino, Murakami Wakana, Watanabe Akari
- Team KIV: Ishibashi Ibuki, Ichimura Airi, Takemoto Kurumi, Tanaka Iori, Nagano Miyabi, Baba Sayaka
- Team TII: Goto Hinano, Seki Ai
"Kanashimi no Jouka Souchi"[]
(1 member)
Line-up[]
| Row | Line-up | ||
|---|---|---|---|
| 3rd Row | 11 12 13 14 15 16 | ||
| 2nd Row | 6 7 8 9 10 | ||
| 1st Row | 1 2 3 4 5 | ||
| Number | Member | Number | Member |
| 16 | Ichimura Airi | 8 | Matsuoka Hana |
| 15 | Sakai Moeka | 7 | Takemoto Kurumi |
| 14 | Matsuoka Natsumi | 6 | Watanabe Akari |
| 13 | Motomura Aoi | 5 | Jitoe Nene |
| 12 | Oda Ayaka | 4 | Unjo Hirona |
| 11 | Imamura Maria | 3 (Center) |
Yabuki Nako |
| 10 | Takeda Tomoka | 2 | Tanaka Miku |
| 9 | Ishibashi Ibuki | 1 | Toyonaga Aki |
Trivia[]
- First Senbatsu of Ichimura Airi.
- It also marked the first (single) Senbatsu of Yabuki Nako since Hayaokuri Calendar in 2018 and Imamura Maria since Bagutte Iijan in 2017.
- Yabuki Nako's first solo center position in HKT48 single (second Senbatsu solo center overall after Totsuzen Do love me!).
- Last single and Senbatsu of Matsuoka Natsumi.
- As of this single, she is the member with the most HKT48 Senbatsu appearances.
- Last single participation of Kojina Yui, Sakaguchi Riko, Seki Ai and Murakawa Bibian
- Last single to feature Team TII before its dissolution.
- This single includes Mogami Nanaka's first solo song.
- First single after Moriyasu Madoka, Murashige Anna and Tashima Meru's graduations.
- This is also the first single after Miyawaki Sakura's graduation, but she hadn't been in a single senbatsu since Hayaokuri Calendar.
- Notably Matsumoto Hinata, who was a Senbatsu member in previous single, did not participate in any of the tracks, due to her graduation announcement.
- This single was first performed during HKT48 LIVE TOUR 2022 ～Under the Spotlight～ concert in Kumamoto.
- The first single released in over 13 months after the release of Kimi to Doko ka e Ikitai single.
- This was the only HKT48 single released in 2022.
