啊哈哈，表示我其实完全不懂日文！

OP？ 我不懂罗马音。。帮不了你

以下为机翻，经验证基本准确。如与原歌出入过大，请传唤老夫改版
donna kimi ni atte mo
nanigenai mainichi ga
tomadou kimochi ha suki no uragaeshi datte
kaze nihodokeru kami ni shinkuro suru buresu
koi kana ( doukana )
ai taina ( koi kamo )
amai amai kyaramerizumu
donna kimi ni atte mo donna kokoro wo egai tarishitemo
imajineishon meri^go^raundo
nanigenai mainichi ga kakegae nai jikan ninaru
aruko u sora
yuuutsu de tameiki na nichi mo koi wo toji tarishinaide
ano toki aashitara nante jirenma ni howairufuraggu
koukai mo shoudou mo
aimai de ( ai takute )
mawaru mawaru razuberi^majikku
minna kimi wo matte ru minna kokoro ni negai dae teru
ime^jorabii irumine^shon
nanigenai mainichi ga kirakira kagayaki masuyouni
inoru yo sora he
donna taimukapuseru mo
kimi no kokoro wo kae rarehashinai
daijoubu mayowa naide ( Flyable Heart )
nanigenai mainichi ga kakegae nai kioku ninaru
aruko u sora