Biisan wa Naze Naku Naru no ka?

CD Information

Artist

HKT48

Single

Biisan wa Naze Naku Naru no ka? (ビーサンはなぜなくなるのか？)

Release Date

2022.06.22

Label/Catalog Number/Price

Label: EMI Records/Universal Music Japan

UPCH-80575 (Regular Edition Type-A, CD+DVD) / ¥1,524

UPCH-80576 (Regular Edition Type-B, CD+DVD) / ¥1,524

UPCH-89473 (Limited Special Price Edition, CD+School Calendar) / ¥952

PRON-5098 (Theater Edition, CD) / ¥952

Regular Edition Details

CD

1. Biisan wa Naze Naku Naru no ka? (ビーサンはなぜなくなるのか？) / Senbatsu
2. • (Type-A) Himawari no Suisaiga (向日葵の水彩画)
   • (Type-B) Juubun, Shiawase (充分、しあわせ)
3. Biisan wa Naze Naku Naru no ka? (off-vocal)
4. • (Type-A) Himawari no Suisaiga (off-vocal)
   • (Type-B) Juubun, Shiawase (off-vocal)

DVD

1. Biisan wa Naze Naku Naru no ka? Music Video
2. • (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)

Limited Special Price/Theater Edition Details

CD

1. Biisan wa Naze Naku Naru no ka?
2. Kanashimi no Jouka Souchi ((悲しみの浄化装置) / Mogami Nanaka
3. Biisan wa Naze Naku Naru no ka? (off-vocal)
4. Kanashimi no Jouka Souchi (off-vocal)

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"

(13 members)

• 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)

• Team H: Ito Yueru, Kuriyama Rina, Sakamoto Rino, Murakami Wakana, Watanabe Akari
• Team KIV: Ishibashi Ibuki, Ichimura Airi, Kawahira Hijiri, Takemoto Kurumi, Tanaka Iori, Nagano Miyabi, Baba Sayaka
• Team TII: Goto Hinano, Seki Ai

"Kanashimi no Jouka Souchi"

(1 member)

• Kenkyuusei: Mogami Nanaka

General Information

Biisan wa Naze Naku Naru no ka? is the 15th single released by HKT48.

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

Oricon Chart Positions

Date	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Week Rank	Sales	Releases
22.06.20	**	**	**	**	**	**	**	**	**

Total Reported Sales: **
Total of weeks charting inside Top 200: **

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!).
• As of this single, Matsuoka Natsumi is the member with the most HKT48 senbatsu apperances
• 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 the previous single, did not participate in any of the tracks, due to her graduation announcement.
• The single was first performed during HKT48 LIVE TOUR 2022 ～Under the Spotlight～ concert in Kumamoto.

HKT48 Singles Chronology
Kimi to Doko ka e Ikitai (2021)	Biisan wa Naze Naku Naru no ka? (2022)	TBA (TBA)