Original lyrics

EN

la la la la la la la la la la la la dare ni demo button hitotsu kakechigaete surechigau hi ga aru ne shinjiteta no ni sunao ni narenai mama hanarete iku senaka ni koe wo nakushitari ima sugu ni tsutaetai kokoro no doa (door) no kagi wa sono mune no naka ni aru no makenaide, nigenaide ikusen no omoidetachi ga musubi tsukete kureru just the key of heart i believe in love, two hearts i believe ln love, two hearts gomen ne to ietara kitto wakaru no ni kimi ga inakya dekinai kitto imagoro onaji omoi daiteru kizuna ga yonde iru yo dakara ai ni yuku ima sugu ni tsutaetai kokoro no doa (door) no kagi wa kono mune no naka ni mo aru me wo tojiru tada inoru tobira goshi ni hibiku kodou kimi ni todoku you ni just the key of heart meguri ai, kono kiseki umareta toki mo basho mo betsubetsu no kimi no mune ni mayowazu ni tobikonda futari dake no monogatari owarasenai yuuki just the key of heart la la la la la la la la la la la la