| Key Of Heart (original) | Key Of Heart (translation) |
|---|---|
| La la la la la la | La la la la la la |
| La la la la la la | La la la la la la |
| 誰にでも | To anyone |
| ボタンひとつ掛け違えて | I made a mistake with one button |
| すれ違う日があるね | There are days when we pass each other |
| 信じてたのに… | I believed it ... |
| 素直になれないまま | Without being obedient |
| 離れていく背中に | On the back away |
| 声をなくしたり | Lose your voice |
| いますぐに伝えたい | I want to tell you right away |
| 心のドアの鍵は | The key to the door of the heart is |
| その胸の中にあるの | In that chest |
| 負けないで、逃げないで | Don't lose, don't run away |
| 幾千の想い出たちが | Thousands of memories |
| 結びつけてくれる | Connect me |
| Just the key of heart | Just the key of heart |
| I believe in love, two hearts | I believe in love, two hearts |
| I believe ln love, two hearts | I believe ln love, two hearts |
| ごめんねと、 | I'm sorry, |
| 言えたらきっとわかるのに | I'm sure you can tell |
| キミがいなきゃできない | I can't do it without you |
| きっと今頃 | I'm sure this time |
| おなじ思い抱いてる | I have the same feelings |
| 絆が呼んでいるよ | Kizuna is calling |
| だから 会いにゆく | That's why I'm going to meet you |
| いますぐに伝えたい | I want to tell you right away |
| 心のドアの鍵は | The key to the door of the heart is |
| この胸の中にもある | Also in this chest |
| 目を閉じる ただ祈る | Close your eyes, just pray |
| 扉越しに響く鼓動 | The heartbeat that echoes through the door |
| キミに届くように | To reach you |
| Just the key of heart | Just the key of heart |
| めぐり逢い、この奇跡 | Meguri, this miracle |
| 生まれた時も場所も | When and where I was born |
| 別々のキミの胸に | On separate Kimi's chest |
| 迷わずに飛び込んだ | I jumped in without hesitation |
| ふたりだけの物語 | A story only for two people |
| 終わらせない勇気 | Courage that never ends |
| Just the key of heart | Just the key of heart |
| La la la la la la | La la la la la la |
| La la la la la la | La la la la la la |
