hikari no nai sora no shitaa boku wa doko e ikeba ī kimi to kawashita yakusoku itsuka kanaetai yo dokoni mo hikari wa nai kurai michi ga tsudzuite ochiru kage mo mienai doko e mukatte iru no ka mada mienai sora wa, doko ni aru nodarou? itsumo mite ita yume no sekai e hikari no nai sora no shitaa boku wa doko e ikeba ī kimi to kawashita yakusoku itsuka kanau no ka na mitakotonai aozora o doko e ikeba mieru ka na? kimi to kawashita yakusoku itsuka aoi sora e