watashi ga mitsuketa kagi de hiraku tobira wa
doko ni aru? ate mo naku sagashi tsuzuketa
yatto mitsuketa no ni hitotsu ja tarinakatta
"kono kimochi wa dare ni mo hibikanai"

hitoribocchi ni narete koe no dashikata mo
wasurete kimi ni nani mo todokanai

tojikometa mama no omoi ga utaidasu
doushitai? shinjitai mune ga yure ugoku
kimi ga tobira o tataiteru jouzu ni koe ga dasenakute mo
"mou sukoshi matte" chanto tsutaetakute
mirai key note

chiisana kokoro no heya ni hitori de ita yo
shagamikomi me o tojite mimi o fusaida
kore de raku ni nareru dakedo kurushii mama de
"kono itami wa itsuka kieru no?"

yuuki ga nai dake de fumidasenai koto
hontou wa kizuiteru yo mae kara

oshikometa mama no omoi ga afuredasu
waraitai nakitai dareka to issho ni
kimi ga tobira o tataiteru ano hi kara nanimo kawarazu
"kono mama de ii no?" tozasareta tobira ni
sotto te o nobasu

mirai no kagi wa kitto hitori ja nakute
dareka to mitsukeru mono nanda

tojikometa mama no omoi ga utaidasu
doushitai? shinjitai mune ga yure ugoku
kimi ga tobira o tataiteru jouzu ni koe ga dasenakute mo
"ima soko ni iku yo" chanto tsutaetai
watashi mo kimi no kagi ni naritakute
mirai key note