[Eng Sub] Miku Ito and Moe Toyota play an instrumental cover of a song. Can you guess which is it?

Never in the history of Humanity has such beautiful instrumental cover ever been performed.

For those moved to tears and want to listen to just the cover or want to download it to your phone, I’ve got a link to an unlisted stand-alone ver.

And here is the link to the original song. It’s pretty good, highly recommend you listen.