Toosakaru nibiiro no kumo machi ni nokoru ame no nioi
yurameku awai sora no mukou ano hi mita yakusoku no basho
    The dark gray clouds moving into the distance, the smell of rain left in the town
    Flickering on the other side of this fleeting sky is the promised place we saw that day

Yume datta no? niji wa mou sora kara kieta
youshanai taiyou chippoke na kage o tada arinomama utsushidasu
    Was it a dream? The rainbow has already disappeared from the sky
    The merciless sun merely projects my small shadow as it is

Bokura yukou yume miru koro o sugi
Futashika ni furueteru ima ga koko ni aru kedo (1)
kieteshimatta niji no sono saki e
itsuka kakaru hashi o mou ichido shinjite arukihajimeru
    We'll go, past the time we see dreams
    The now that's uncertainly wavering is here but
    To the end of that rainbow that disappeared
    I'll believe once again in that bridge that may be built someday and start walking

Kimi no egaiteta sekai wa nee koko ni wa nakatta n da
ayafuya na ano sora no mukou sore demo michi wa tsuzuiteiru
    The world you painted, hey, it wasn't here
    It's in the vague other side of the sky, but even so the path continues

Nani ga aru n darou? niji wa mou sora kara kieta
tadoritsukitai yo atedonai mirai ni mada obieteiru keredo
    I wonder what's there? The rainbow has already disappeared from the sky
    I want to reach it, though I'm still frightened of an aimless future

Bokura iu yo yume miru koro o sugi
katariau subete no kotoba ga yodonde kikoetemo
kieteshimatta niji no sono saki e
itsuka kakaru hashi o mou ichido shinjite bokura wa yuku
    We'll speak, past the time we see dreams
    We'll talk with each other, even if all the words sound stagnant
    To the end of that rainbow that disappeared
    I'll believe once again in that bridge that may be built someday and we'll go

Sayonara kinou no negai kotae sagashiteru kyou ashita wa kaze no naka
    Goodbye yesterday's wish, today spent searching for an answer, tomorrow is in the wind

Nijindemo iroaseteshimattemo sonna kawariyuku keshiki mo uketomete
    Even if it blurs, if it loses colour, accept that changing scene

Bokura yukou yume miru koro o sugi
Futashika ni furueteru ima ga koko ni aru kedo
kieteshimatta niji no sono saki e
itsuka kakaru hashi o mou ichido shinjite arukitsuzukeru
    We'll go, past the time we see dreams
    The now that's uncertainly wavering is here but
    To the end of that rainbow that disappeared
    I'll believe once again in that bridge that may be built someday and I can keep walking

Notes;
1) where he sings 'ima' (now) is the kanji for 'genjitsu' (reality)