Tekst piosenki 'Niji' wykonawcy Yuzu

Kimi no ashi ni karamitsuku no wa nani, rettoukan ?
Sore tomo fuuchou wa na hibi ni mebaeta iwakan ?
Kuu kyona sora, ki ga tsukeba hora utsumuite
Hitori bouchi ni natte tai tsuka no kaeri michi

Toku betsu na koto dewa nai sa, sorezore kanashimi wo kakaeten da yo
Jibun shidai de hibi wo nuri kaete ikeru

Dare no kokoro no naka ni mo yowamushi wa sonzaishiteite
Soitsu todou mukiau kana itsumo ka kattenda
Sou yotte itami yo yasashisa wo shitte yukun dayo
Machigai nante kitto nani hitotsu nain dayo
Dare no sei demo nai sa, hito wa miina kagami dakara

Yuuki wo dashite, niji wo egakou

Koete koete koete
Nagashita namida wa itsushika
Hitoshi no hikari ni kawaru

Magaiku netta michi no kochuu de
Ikutsu mono bun kiten ni bokura wa deau darou
Dakedo mou furi kaera nakute iin dayo
Kimi dake no michi, sono ashi de aruite yukun dayo

Tooi mawari shitatte ii sa, toki ni wa tsumadzuku koto mo aru sa
Demo kotae wa itsumo kimi dake no mono dakara

Todoke todoke todoke
Kurayami no naka de naite tanda ne
Kibou wo nose sora ni hibike

Kawaita daichi fumishi meru hokori mami reno Boots
Ataerareteketa inochi tori modosu no sa Roots
Fuki nukeru kaze no naka wo hikari to kage wo uke yometanara
Yukou kimi to

Koete koete koete
Koete koete koete
Nagashita namida wa itsushika
Hitoshi no hikari ni kawaru

Niji iro no ashita he tsuzuku

Ame agari no sora ni, sotto kakaru niji no hashi
Ame agari no sora ni, sotto kakaru niji no hashi