BACK WITH THE VOCALOID/JAPANESE STUFF ALEA!

First of all....
Just wait about 30 seconds and it's gets crazy really fast.
Here's and English version;

[There should be a GIF or video here. Update the app now to see it.]

So..............

YEAH

I found this looking for echo I think?
I don't remember
I just remember I downloaded it to listen to later, and fell asleep to it in the car and my headphones came in and scared my dad.