User blog comment:Raababukk/Possible New Power ups for Issei Hyoudou/@comment-16281343-20131016182026/@comment-16281343-20131017155152

It wasn't stated in the LN that Sirzechs sung the "The Song of Oppai Dragon" too, he just composed it.. But oh well, I think everyone here wants to witness that video too.

Btw, I like "Grope-Grope Suck-Suck Pafu-Pafu" more than "Click-Click Zoom-Zoom Iyaan" :D