View source for Biisan wa Naze Naku Naru no ka?

==CD Information==
; Artist
: [[HKT48]] 
; Single
: Biisan wa Naze Naku Naru no ka? <small>(ビーサンはなぜなくなるのか？)</small>
; Release Date
: 2022.06.22
; Label/Catalog Number/Price
: <b>Label:</b> EMI Records/Universal Music Japan
: UPCH-80575 <small>(Regular Edition Type-A, CD+DVD)</small> / ¥1,524
: UPCH-80576 <small>(Regular Edition Type-B, CD+DVD)</small> / ¥1,524
: UPCH-89473 <small>(Limited Special Price Edition, CD+School Calendar)</small> / ¥952
: PRON-5098 <small>(Theater Edition, CD)</small> / ¥952

==Regular Edition Details==
;CD
# [[Biisan wa Naze Naku Naru no ka? (Song)|Biisan wa Naze Naku Naru no ka?]] <small>(ビーサンはなぜなくなるのか？)</small> / [[Senbatsu]]
#
#* <small>(Type-A)</small> TBA
#* <small>(Type-B)</small> TBA
# Biisan wa Naze Naku Naru no ka? (off-vocal)
#
#* <small>(Type-A)</small> TBA (off-vocal)
#* <small>(Type-B)</small> TBA (off-vocal)

;DVD
# Biisan wa Naze Naku Naru no ka? Music Video
#
#* <small>(Type-A)</small> Biisan wa Naze Naku Naru no ka? Music Video (Making-of)
#* <small>(Type-B)</small> 6th Generation Audition Documentary Video <small>(6期生オーディション ドキュメント映像)</small>

==Limited Special Price/Theater Edition Details==
; CD  
# Biisan wa Naze Naku Naru no ka?
# TBA
# Biisan wa Naze Naku Naru no ka? (off-vocal)
# TBA (off-vocal)

==Included Members==
==="[[Biisan wa Naze Naku Naru no ka? (Song)|Biisan wa Naze Naku Naru no ka?]]"===
'''★ [[Senbatsu]]''' <small>(選抜) (16 Members) ([[Yabuki Nako]] [[Center]])</small><br/>
* '''[[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]], [[Okada Ayaka]], [[Sakai Moeka]], [[Takeda Tomoka]], [[Matsuoka Hana]]

==General Information==
<b>Biisan wa Naze Naku Naru no ka?</b> is the 15th single released by [[HKT48]].

==[[Oricon]] Chart Positions==
{| border="1" cellpadding="2" style="margin: 1em; border: 1px #aaa solid; border-collapse: collapse;"
|- style="background:#efefef"
!style="width: 45px;"|Date||style="width: 45px;"|Mon||style="width: 45px;"|Tue||style="width: 45px;"|Wed||style="width: 45px;"|Thu||style="width: 45px;"|Fri||style="width: 45px;"|Sat||style="width: 45px;"|Sun||Week Rank||Sales||Releases
|- align="center"
||22.06.20|| ** || ** || ** || ** || ** || ** || ** || ** || ** || rowspan="20" style="background:#ccc;"|
|}

'''Total Reported Sales''': **<br>
'''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 center overall after [[Totsuzen Do love me!]]).


{{HKT48SinglesChronologyChart
|Name1= [[Kimi to Doko ka e Ikitai]]
|Date1= (2021)
|Name2= [[Biisan wa Naze Naku Naru no ka?]]
|Date2= 2022
|Name3= TBA
|Date3= TBA
}}

[[Category: HKT48 Singles]]