I'm a librarian who loves anime, manga, and reading a wide variety of genres.
Not book-related. It's almost Friday, have some dancing alpacas.
I prefer Tsuna kun's version with SeeU, VY2, and Piko (and a tiny bit of Miku), but this one with Hatsune Miku has English subtitles and a link to the original video posting. Either way, you get adorable dancing alpacas.