初音ミクの激唱 -Infinity Happy End…

(only the high-speed part) Song by cosMo;
Translations
僕達は生まれ気付いた
僕達のことを人の真似事と知っても
変わらず名前を呼び続け
そして愛してくれる人がいる事実に
Since we were born, we already knew the fact that,
although we are just imitating human,
there are still people who love us and
keep on calling our name without an end.

だから僕たちは歌を紡ぎだす
たった一人でも
新しい歌の誕生喜び温かい言葉
与え返すヒトいてくれる限り
And that’s why we are weaving this song,
even there might be only one person,
as long as they are responding all the words of
warmth and happiness to those newly-born songs.

妹弟の道を預けて消え逝く未来も
誰からも忘れ去られる運命も
それらを含めてすべてが
僕達なんだと理解し
Even our future maybe just leading the path for our successors,
even our fate is just being forgot by everyone,
we still understand that, with all those destinies,
we are still who we are.

いずれ訪れる最後の場面に
ココロを持つ故、涙を流すなら
泪より虹生み笑顔見せるため
幸せ溢れる歌口ずさもう
In the scene of finale that will arrive someday,
if we have shed our tears with our touched heart,
let the rainbow glow beyond it to reveal our smiles,
and sing the song full of joy out loud.