[Verse 1]
Dooshite nemure-nai no?
Dooshite yoru wa owaru no?
Ira-nai nani mo, ashita sae mo
Kimi ga i-nai mirai

[Verse 2]
Dooshite waratteta no?
Dooshite samishikatta noni?
Dare mo shira-nai, hontoo wa tada
Soba ni ite hoshikatta

[Chorus 1]
Zetsuboo sae mo hikari ni naru
Yama-nai ame ga furi tsuzuite mo
Zetsuboo sae mo hikari ni naru
Kanashii ame ga niji o kakeru yo
Doko made mo

[Verse 3]
Nidoto ae-nai kedo
Wasure-naide itai yo
Yume ga tsuzuku nara
Same-nai de

[Verse 4]
Dooshite waratteta no?
Dooshite samishikatta noni?
Dare mo shira-nai, hontoo wa tada
Ai-tai. Sore dake datta
[Chorus 2]
Zetsuboo sae mo hikari ni naru
Yama-nai ame ga furi-tsuzuite mo
Zetsuboo sae mo hikari ni naru
Kanashii ame ga niji o kakeru yo
Ima mo

[Outro]
Yama-nai ame ga kokoro mitasu yo
Itsu made mo