Manga TG Morph (I dunno)

[Styerion]

Some of you guys know I'm a sucker for happy TF. I've found this animated TG morph twice now (trying to find where I first saw it. Wasn't here, from what I could guess. I could always be wrong though, as my doubts tend to do to me), asked for the glorious context... and no one knows. Any idea, any of you.

Yes, a bit of a reverse request. I hope providing the image boots some curiosity and saves me from a posting hell of sorts. Hopefully the first place I found it will turn up more results for me. Just hope it wasn't 4chan and I forgot. I like this image way too much to not know where it came from, or who was the genius that mixed it.