[Romanized:]

Sayonara, genki de ite ne
Kimi wa waratte saigo no kiss wo shita
Anata no sei de heiki na furi ga
Kanashii kurai umaku natta deshou

Nimotsu no kieta nani mo nai heya
Nukegara no kokoro no you de

Sekai de ichiban aishita hito
Boku yori mo zutto
Shiawase ni shitekureru
Dare ka ni itsuka kanarazu aeru
Boku ni dekiru koto wa
Kimi no tame ni tada hitori inoru koto dake
Just Forever

Kotoba mo iranai hodo ni
Bokura wa aishiatte shimatta kara
Nani mo iezu ni utsumuku boku no
Mune no oku kini ni wa wakaru

Namida koraete kimi ga watashita
Heya no kagi tsutau nukumori

Sekai de ichiban aishita hito
Kokoro no tobira ni itsukara kagi wo kakete
Samishisa mune ni sotto kakushite
Nani mo iwanakute mo kizuitekureru
Kimi no namida mo shirazu ni nani wo shiteitan darou
Modoritai yo ano hi no futari ni
Shiawase sugita kioku ga knife ni kawaru
Mune ga hikisakareteiku Woo Oh

Sekai de ichiban aishita hito
Boku yori mo zutto
Shiawase ni shitekureru
Dare ka ni itsuka kanarazu aeru
Boku ni dekiru koto wa
Kimi no tame ni tada hitori inoru koto dake
Just Forever

[Japanese:]

「さよなら　元気でいてね」
君は笑って最後のキスをした
「あなたのせいで平気なふりが
悲しいくらい上手くなったでしょう」

荷物の消えた　何もない部屋
抜け殻の心のようで

世界で一番愛した人
僕よりもずっと
しあわせにしてくれる
誰かにいつか必ず会える
僕に出来ることは
君のためにただ独り祈ることだけ
Just Forever…

言葉も要らないほどに
僕らは愛し合ってしまったから
何も言えずに　俯く僕の
胸の奥　君には分かる

涙こらえて　君が渡した
部屋の鍵　伝う温もり

世界で一番愛した人
心の扉に　いつから鍵を掛けて
さみしさ　胸にそっと隠して
何も言わなくても　気づいてくれる…
君の涙も知らずに　何をしていたんだろう
戻りたいよ　あの日の二人に
しあわせ過ぎた記憶がナイフに変わる
胸が引き裂かれていく　Woo Oh

世界で一番愛した人
僕よりもずっと
しあわせにしてくれる
誰かにいつか必ず会える
僕に出来ることは
君のためにただ独り祈ることだけ
Just Forever…

[English translation:]

"Goodbye, be well."
You smiled as you kissed me for the last time.
"Because of you, I've become good at pretending to be ok
That it's almost sad."

Without your luggage, the room is empty.
Just like the empty shell of my heart.

To the person I loved the most in this world
Please be happy
Even more than me
Someday, you will definitely meet someone
The only thing I can do for you
Is to pray for that one person
Just forever…

We have loved each other so much
To the point wherein we don't even need words
That's why even without speaking, you know
What's inside my heart as I bow my head

Holding back tears as you handed over
The still-warm key to our room

From the person I loved the most in the world
When will I be able to lock the door to my heart?
I hid the loneliness inside my chest
Yet you noticed even without words
Without noticing your tears, what would I have done?
I want to go back to the days with the two of us together
But the immensely happy memories
Have turned into a knife that tears at my chest

To the person I loved the most in this world
Please be happy
Even more than me
Someday, you will definitely meet someone
The only thing I can do for you
Is to pray for that one person
Just forever…