こちら、幸福安心委員会です。 (Kochira, Koufuku Anshin Iinkai desu.)

==Background==
The lyrics tell everyone that being happy is their duty, and that the Happiness and Peace of Mind committee will support them. 'Its your duty!' is repeated throughout the song. Miku appears to be the spokesperson for the Committee, forcing their citizens to pretend to smile and be happy. Anyone who fails to comply is executed, and you can hear roaring brainwashed crowds behind her. The song's tone changes dramatically from beginning to the end to sing the truth of how people feel.
The lyrics mention '', a creature that is a water elemental/water nymph of Greek and German legend. In the myths they sing with beautiful voices, and seek to marry a human to gain a soul. However in some stories those who are unfaithful to an undine are cursed with death. This appears to have been the fate of the knight in the song. Miku may represent an Ondine.
A sequel, Hop! Step! Sokushi! Shiawase Dance Deathtrap was made. It has surpassed over Hall of Legend and 12 million views on YouTube.
==Succeeding versions==
==Lyrics==
<tabber>
Japanese Lyrics=
Japanese (日本語歌詞) 	Romaji (ローマ字)
どうして　みんなが　幸せなの？ 	doushite minna ga shiawase na no?
この世界のこと　聞きたいって、知りたいって 	kono sekai no koto kikitai tte, shiritai tte
水辺の公園で　みんなが耳を澄ませて 	mizube no kouen de minna ga mimi o sumasete
わくわくするね　ねぇ、オンディーヌ？ 	wakuwaku suru ne nee, ondiinu?
 	
ハイハーイ！ 	hai haai!
さあさあ、みなさん　教えてあげまーす！ 	saa saa, minasan oshiete agemaasu
みんなが気になっていること　疑問に思ってること 	minna ga ki ni natte iru koto gimon ni omotteru koto
ぜーんぶ　教えてあげまーす！ 	zeenbu oshiete agemaasu!
 	
えー、みなさんが　幸福なのは･･･　義務なんです。 	ee, minasan ga koufuku na no wa… gimu nan desu.
幸せですか？　義務ですよ？　果たしてますか？ 	shiawase desu ka? gimu desu yo? hatashitemasu ka?
我々、幸福安心委員会は　みなさまの幸せを願い　そして、支えまーす。 	wareware, koufuku anshin iinkai wa minasama no shiawase o negai soshite, sasaemaasu
 	
幸福なのは義務なんです 	koufuku na no wa gimu nan desu
幸福なのは義務なんです 	koufuku na no wa gimu nan desu
幸福なのは義務なんです 	koufuku na no wa gimu nan desu
幸せですか？　義務ですよ？ 	shiawase desu ka? gimu desu yo?
 	
幸福なのは義務なんです 	koufuku na no wa gimu nan desu
幸福なのは義務なんです 	koufuku na no wa gimu nan desu
幸福なのは義務なんです 	koufuku na no wa gimu nan desu
幸せですか？　義務ですよ。 	shiawase desu ka? gimu desu yo.
 	
ですから、安心して義務を果たすように！ 	desu kara, anshin shite gimu o hatasu you ni!
みなさまの幸せが　我々の幸せ。 	minasama no shiawase ga wareware no shiawase.
 	
幸せですか？　義務ですよ？　果たしてますか？ 	shiawase desu ka? gimu desu yo? hatashitemasu ka?
幸せじゃないなら… 	shiawase ja nai nara…
 	
絞首　斬首　銃殺　釜ゆで　溺死　電気 	koushu zanshu juusatsu kamayude dekishi denki
火あぶり　生き埋め　薬殺　石打ち　鋸　はりつけ 	hiaburi ikiume yakusatsu ishiuchi nokogiri haritsuke
好きなのを　選んでね♪ 	suki na no o erande ne♪
 	
ハイハーイ！ 	hai haai!
さあさあ、みなさん　幸せだけが満ちてまーす！ 	saa saa, minasan shiawase dake ga michitemaasu
不安とか不満、　なにひとつないでしょー？ 	fuan toka fuman, nanihitotsu nai deshoo?
コワーイ、恐いわー 	kowaai, kowai waa
幸せすぎて、恐いわー。 	shiawasesugite, kowai waa.
 	
ホントに　みんなが　幸せなの？ 	honto ni minna ga shiawase na no?
この世界の外　行きたいって、逃げたいって 	kono sekai no soto ikitai tte, nigetai tte
水辺の公園で　みんなが耳を塞いで 	mizube no kouen de minna ga mimi o fusaide
ビクビクしてた　ねぇ、ウンディーネ？ 	bikubiku shiteta nee, undiine?
 	
ハイハーイ！ 	hai haai!
さあさあ、みなさん　死にましたー！ 	saasaa, minasan shinimashitaa!
オンディーヌをふった騎士は　死にましたー！ 	ondiinu o futta kishi wa shinimashitaa!
葬儀に出るなら、向こうに並べ！ 	sougi ni deru nara, mukou ni narabe!
それ以外は　幸せに暮らせ！　以上 	sore igai wa shiawase ni kurase! ijou
 	
幸福なのは義務なんです 	koufuku na no wa gimu nan desu
幸福なのは義務なんです 	koufuku na no wa gimu nan desu
幸福なのは義務なんです 	koufuku na no wa gimu nan desu
幸せですか？　義務ですよ？ 	shiawase desu ka? gimu desu yo?
 	
幸福なのは義務なんです 	koufuku na no wa gimu nan desu
幸福なのは義務なんです 	koufuku na no wa gimu nan desu
幸福なのは義務なんです 	koufuku na no wa gimu nan desu
幸せですか？　義務ですよ？ 	shiawase desu ka? gimu desu yo?
 	
義務なんです　義務ですよ？　義務なんです　幸福なのは義務なんです 	gimu nan desu gimu desu yo? gimu nan desu koufuku na no wa gimu nan desu
義務なんです　義務ですよ？　義務なんです 	gimu nan desu gimu desu yo? Gimu nan desu
 	
幸せじゃないなら 死ね 	shiawase ja nai nara shine
|-|Approved English Lyrics =
Why is it that everyone's so happy?
They want to hear about and get to know the world
They listen closely at the park by the water
This is so exciting, isn't it, Ondine?
Okay then!
All right everyone! I'm going to tell you
The things you've been dying to know, the thing's you're not sure about
I'm going to tell you everything!
Well, the reason everyone's happy is because it's your duty
Are you happy? It's your duty! Are you fulfilling it?
We here at the Happiness and Peace of Mind Committee hope for and support the happiness of all
Happiness is your duty
Happiness is your duty
Happiness is your duty
Are you happy? It's your duty!
Happiness is your duty
Happiness is your duty
Happiness is your duty
Are you happy? It's your duty!
So be at peace, and fulfill your duty!
Your happiness is our happiness
Are you happy? It's your duty! Are you fulfilling it?
If you're not happy, there's…
Hanging, beheading, firing squad, boiling, drowning, electrocution,
Immolation, live burial, lethal injection, stoning, sawing, crucifixion,
Take your pick! ♪
Okay then!
All right everyone, aren't you all just brimming with happiness!
Not a hint of anxiety or discontent, right?
Scary, so scary,
We're so happy it's scary!
Happiness is your duty
Happiness is your duty
Happiness is your duty
Are you happy? It's your duty!
Happiness is your duty
Happiness is your duty
Happiness is your duty
Are you happy? It's your duty!
It's your duty! It's your duty! It's your duty! Happiness is your duty!
It's your duty! It's your duty! It's your duty!
If you're not happy…you're dead.
</tabber>
==Derivatives==
==Other media appearances==
===Literatures===
A novel based on the song was published on September 20, 2014 by PHP Institute, Inc. Tory Hitsuji, the original lyricist, wrote and adapted the story for the novel.
===Discography===
This song was featured in the following albums: 
*こちら、幸福安心委員会です。 (Kochira, Koufuku Anshin Iinkai desu.) (single)
*IA/02 -COLOR-
*VOCA NICO☆PARTY
*Vocalohistory
===Concerts===
This song was featured in the following concerts: 
*SNOW MIKU LIVE! 2019
===Video games===
This song was featured in the following video games:
*Hatsune Miku -Project DIVA- F 2nd
*Hatsune Miku -Project DIVA- Arcade Future Tone
*Hatsune Miku: Dreamy Vocal
*CHUNITHM
*SOUND VOLTEX BOOTH
*SOUND VOLTEX II -infinite infection-
*
==Gallery==
<tabber>Games =
ThisIsTheHappinessAndPeaceOfMindCommittee.jpg|Miku's Siren module for the song "Kochira, Koufuku Anshin Iinkai desu.", designed by wogura. From the video game Hatsune Miku -Project DIVA- F 2nd.
miku_139.jpg|Miku's Siren module for the song "Kochira, Koufuku Anshin Iinkai desu.", designed by wogura. From the video game Hatsune Miku -Project DIVA- Arcade Future Tone.
Kochira_koufuku_anshin_iinkai_desu_f_2nd_loading_screen.jpg|wogura's loading screen, for the song "Kochira, Koufuku Anshin Iinkai desu.". From the video game "-Project DIVA- F 2nd".
Games - Project DIVA - Kochira Koufuku Anshin.jpg|Music jacket featured in -Project DIVA- Arcade Future Tone and Mega Mix
Games - Project SEKAI - こちら、幸福安心委員会です。.png|Music jacket featured in Project SEKAI! COLORFUL STAGE feat. Hatsune Miku
|-|Merchandising =
Utata-P - KoufukuAnshinIinkai (single).jpg|Cover art of the digital singleこちら、幸福安心委員会です。 (Kochira, Koufuku Anshin Iinkai desu.)
Happy_peace_community_novel.jpg|Novel adaptation cover
Dollfie Dream Miku Kochira Koufuku Anshin Iinkai desu.jpeg|Hatsune Miku's Dollfie wearing her "Dream" outfit based on the iconic costume from the song "Kochira, Koufuku Anshin Iinkai desu."
</tabber>
==External links==
===Official===
===Unofficial===
Category:Original songs
Category:Japanese songs
Category:Songs featuring Hatsune Miku
Category:Video game songs
Category:Mobile game songs
Category:Concert songs
Category:Songs featured in literatures