ai tai toki wa dō [bad word]  tsubasa ga are ba ii noni
kimi ni ai tai toki wa dō [bad word] 
himitsu no tobira o Knock - Knock!? ii desho?
tōi futari no kyori ga
setsunaku te egao ni nare nai
sonna watashi no koto mo wakatte yo
sabishikutte chotto okocchau
suki ni natte hontōni yokatta to
mainichi sasayaki tai motto ne!
ai tai toki wa dō [bad word]  tsuki ni hoshi ni negau dake?
kimi ni ai tai toki wa dō [bad word] 
monotarinai no yume ja
ai tai toki wa dō [bad word]  tsubasa ga are ba ii noni
kimi ni ai tai toki wa dō [bad word] 
himitsu no tobira o Knock - Knock !? ii desho?
kimi ga watashi no naka de
sukoshi zutsu ōkiku natte ta no ne
itsumo issho ja nakya to
negau no wa tōzen desho tte yappa omocchau
dare no sei? setsuna [bad word] mune
yasashiku dakishime te yo motto yo!
ii tai koto ga [bad word] kedo koko ni i nai no [bad word] 
kimi ni ii tai koto ga [bad word] kara
hitori bocchi wa iya yo
ii tai koto ga [bad word] kedo heya ni dare mo i nai no ne
kimi ni ii tai koto ga [bad word] kara
himitsu no tobira de Knock - Knock !? ki te yo ne!
suki ni natte hontōni yokatta to
mainichi sasayaki tai motto ne!
ai tai toki wa dō [bad word]  tsuki ni hoshi ni negau dake?
kimi ni ai tai toki wa dō [bad word] 
himitsu no tobira de Knock - Knock !? ki te yo ne!
ai tai toki wa dō [bad word]  tsubasa ga are ba ii noni
kimi ni ai tai toki wa dō [bad word] 
himitsu no tobira o Knock - Knock !? ii desho?

What should I do when I miss you? If only I had wings…
What should I do when I want to see you?
Can I Knock-Know on your secret door?
It’s ok, right?
The distance between us is too far apart
and it pains me… I can’t even smile.
Understand how I feel just a bit!
I’m so lonely I get a bit angry.
I’m glad I came to love you.
I want to whisper it every day, more and more!
What should I do when I miss you? Simply wish to the moon and stars?
What should I do when I want to see you?
It’s just an unsatisfactory dream…
What should I do when I miss you? If only I had wings…
What should I do when I want to see you?
Can I Knock-Know on your secret door?
It’s ok, right?
Your presence in my heart
grew bigger and bigger day by day.
We must always be together…
and it’s natural I’ll wish for that… of course it is!
Whose fault is it that my heart pains me so?
Hold me gently, more and more!
I have so many things to tell you, but you aren’t here… why?
I have so many things I want to say you
so don’t leave me alone!
I have so many things I want to say but there isn’t anyone here…
I have so many things I want to say to you
so I’ll Knock-Knock on your secret [bad word] and answer, ok?
I’m glad I came to love you.
I want to whisper it every day, more and more!
What should I do when I miss you? Simply wish to the moon and stars?
What should I do when I want to see you?
I’ll Knock-Knock on your secret door [bad word] answer, ok?
What should I do when I miss you? If only I had wings…
What should I do when I want to see you?
Can I Knock-Know on your secret door?
It’s ok, right?