Romanji:

Dekakeyou ima sugu　Ano niji no mukou made
Shinjite kowagarazu susumeba ii no sa　Kimi no hohaba de
Kimi no mama de

Moya moya [bad word] kokoro no naka ga harenai toki wa
Fuusen ni tsumete kodomo mitai ni tsutsuite miyou

Hoka no dareka ni nante narenai　Mata nai mono nedari
Itsudatte tokubetsu na jibun kidzukazu ni

Dekakeyou ima sugu　Ano niji no mukou made
Ame no yasashisa ni kidzuku hi ga kitto [bad word] yo
Tsuyosa mo yowasa mo　Arinomama no kimi de iinda
Shinjite kowagarazu susumeba ii no sa　Kimi no hohaba de

Sowa sowa [bad word] kokoro kakaete nemurenu [bad word] wa
Yozora no hoshi wo　Sotto sukutte narabete miyou

Tarinai mono nado nanimo nai　Wasuregachi dakeredo
Yuukansa mo yowamushi mo　Kimi no naka ni [bad word] 

Naiteta kinou wa　Atarashii asu ni tsudzuku yo
Ima wa honno chiisana hikari demo　Soko ni [bad word] kara

Koko kara dekakeyou ima sugu　Ano niji no mukou made
Ame no yasashisa ni kidzuku hi ga kitto [bad word] yo
Tsuyosa mo yowasa mo　Arinomama no kimi de iinda
Shinjite kowagarazu susumeba ii no sa　Kimi no hohaba de
Kimi no mama de

English:

Let's leave here, right now　Let's go to the other side of that rainbow
Don't be afraid, believe and go forward　At your own pace
As you are

The times when your gloomy heart won't clear up
Try shoving the gloom in a balloon and poking at it like a child

You can't [bad word] someone else　You're asking for too much again
Always failing to notice the special person you are

Let's leave here, right now　Let's go to the other side of that rainbow
The day when you'll understand the gentleness of the rain will [bad word] 
Your strengths, your weaknesses　You're fine as you are
Don't be afraid, believe and go forward　At your own pace

The nights when you carry your uneasy heart
Try gently scooping the stars out of the night sky and lining them up

There's nothing you're missing　You might be oblivious of it
But there's both bravery and cowardice inside you

The days in the past that you cried lead to a new tomorrow
Because even now, there's a very small light waiting there

Let's leave here, right now　Let's go to the other side of that rainbow
The day when you'll understand the gentleness of the rain will [bad word] 
Your strengths, your weaknesses　You're fine as you are
Don't be afraid, believe and go forward　At your own pace
As you are

Credit: [bad word]