Original

Subete ga [bad word] youna kyoufu ni senaka wo [bad word] ga kirau "wakare yo" no go-moji ni rokku wo [bad word] 
Nande nano? Nande nano? Iya iya iya
Chotto mae no nukumori wo motto motto
I can't believe it I can't understand
I don't know what to do I don't know

Dindon dindon dindon atama [bad word] setsuna to ikari
I know Zenbu wakatte Subete wakatteta tsumori
Nee Demo kotae janakute Riyuu ga hoshiin da!!

Satte itta anta nanka wa Bai bai bai
Tte itai kedo ienai no wa Nande? Nande?
Anta nanka mitakunai no sa eien ni
Tte ietakedo omottenai no wa Nande? Nande?

Tsurai Tsurai (Semai heya no naka de mogakiku rashii) 
Kurai Kurai... (Semai heya no naka de mogakiku rashii)

Satte itta anta nanka wa Bai bai bai
Tte itai kedo ienai no wa Nande? Nande?
Anta nanka mitakunai no sa eien ni
Tte ietakedo omottenai no wa Nande? Nande?

Motometen da Hoshiin da Etosetora [bad word] da Modonnai no wa Demo demo
Omoubun wa jiyuu daro? Naa etosetora
Tanomu dareka Dareka Kotaete kure

I know what I want

Bye-bye

Translate

My back being pushed by the fear that everything might end
I put a lock on the five letters of "let's break up" that my tear ducts hate

Why? Why? No no no
More, more of the warmth from a little earlier
I can't believe it, I can't understand
I don't know what to do, I don't know

Dindon dindon dindon, the moment and anger that occupies my head
I know, understanding it all, the belief that I understood everything
Hey, but instead of the answer, I want the reason!!

As for you who left, bye bye bye
Is what I want to say but why can't I say it? Why?
I don't want to see you. Ever.
Is what I could have said but why don't I feel it? Why?

Painful, painful (Apparently algae are shaved in narrow rooms)
Dark, dark (Apparently algae are shaved in narrow rooms)

As for you who left, bye bye bye
Is what I want to say but why can't I say it? Why?
I don't want to see you. Ever.
Is what I could have said but why don't I feel it? Why?

I'm searching, wanting, et cetera
I understand, I won't go back but, but
I can think freely right? Hey, et cetera
Please, someone someone, answer me

I know what I want…

Bye-bye