I understand only a little of what she is saying... yet I can't stop listening to her.

Oh no then it must a case hypnosuw- I obey.

Sounds like Hatsune Miku

Indeed it is.

Im lost in infinite loop.

... help please..

I need assistance

I think it's Megurine Luka. It's a bit too deep for it to be Hatsune Miku.

She's saying:

"Listen to Suwako's song. Suwa~ Suwa~..."

...Obey Suwako. Glory to the Moriya Shrine.

GATHER FAITH!

It sounds like a "nursery rhyme"

Swa...swa...swa...swa... Why are the Suwako's hopping backwards? Can someone plees give the lyrics?

Pijpmans said:
Swa...swa...swa...swa... Why are the Suwako's hopping backwards? Can someone plees give the lyrics?

It's a two-frame animation, so, depending on how you look at it, they could be hopping either way.
For the lyrics, look at my above post.