Romaji

Itsumo sou yo nanika wo ushinatte kara
Taisetsu da yo kizuite kuyande asu e fumidasu no kowaku natta
Kizu darake de kokoro no sora, ame tsuzuki
Demo anata ga kureta hitokoto de sora ni niji ga kakatta no

Namida no bun dake asu wa motto yasashiku nareru
Muda na koto nante hitotsu mo nai kara, daijoubu da to

Anata no yasashisa shitte umareta kimochi "arigatou, deaete yokatta"
Sekai wa konna ni kagayaku niji iro shiteru sou anata ga oshiete kureta

Mou aenai nante kangaeru dake de
Hitoribocchi sonna ki ga shiteta demo ima wa chanto wakaru
Sona ni inakutemo moratta yasashisa wa kiezu ni
Kokoro ni nokotte sasaetsuzukete kureru koto

Kokoro no sora ni kakatta kono niji kitto asu ni tsunagaru kakehashi da ne
Anata ni hokoreru you na "atashi" sagashite ima arukidasu to kimeta yo

Tsumazukisou ni nattemo kokoro ni niji wo egakou
Atashi mo itsuka dareka ni sono hikari wo tsutaetai no

Anata no yasashisa shitte umareta kimochi "arigatou, deaete yokatta"
Sekai wa konna ni kagayaku niji iro shiteru sou anata ga oshiete kureta

Kokoro no sora ni kakatta kono niji kitto asu ni tsunagaru kakehashi da ne
Anata ga kureta yuuki wo kakae mezasu yo kagayaku niji no mukougawa

English

It was always the same, when I lost something
I realised how important it was and regretted it, and became afraid to move on to tomorrow
It rained continuously in the wound-filled sky of my heart
But a few words from you made a rainbow appear in the sky

The more tears you cry, the kinder you'll be tomorrow
It's OK, nothing is for nothing

Finding your kindness made me think "Thank you, I'm glad I met you"
You taught me, yeah, what a bright rainbow the world is

Just thinking about how I'll never see you again
Made me feel alone, but now I know
Even if you're not by my side anymore, your kindness won't be gone
It'll remain in my heart and keep supporting me

The rainbow in the sky of my heart is surely a bridge to tomorrow
I've decided to walk on now and find a "me" you can be proud of

Even when I'm about to stumble, I'll draw a rainbow in my heart
I want to give that light to someone someday too

Finding your kindness made me think "Thank you, I'm glad I met you"
You taught me, yeah, what a bright rainbow the world is

The rainbow in the sky of my heart is surely a bridge to tomorrow
I'll carry the courage you gave me and head for the end of the shining rainbow