"ookiku nattara wakaru wa yo"
sou itte saigo no hitokuchi aoru sugata ni akogarete
JU-SU o ikki ni nomihoshita

otona no himitsu wa nani yara okufukai
sora ni tachinoboru ookina tameiki

chiisai koro wa itsudatte
hane ga nakutemo sora o tobeta
SUTEKI na mahou datta
mirai no iro wa niji no iro

"amari ii mon janai wa yo"
hareta kao de igusuri sagasu kedarui asa ni akogarete
mukuchi na FURI shite mita kedo

otona no himitsu wa yappari kakubetsu
sono tooi me ni wa nani ga mieteru no?

aru hi totsuzen ki ga tsuita
hane mo nai no ni toberu wakenai
soshite tabako ni hi o tsuketa
mirai ni iro nante nakatta

ookiku nattara wakatta yo
ookiku nattemo wakaranai mono ga takusan arunda ne
shiritai kara ikirunda ne

otona no hiketsu wa "akirameru" koto da
sou omotteita haiiro no hibi ni

sayonara o ageru kawari ni
doko made mo daitette ageru
mou ichido sora o tobitai
mirai no iro wa atashi no mono

mirai no iro wa kimi no mono