AOD-002 - Aiyama Minami SPECIAL Wild Thing eX

I bought this because of the good reviews, but... what is this? There's this weird BGM playing throughout the whole thing, and it's so annoying. I don't understand why they added that music. I was hoping for light mosaic, but it was a letdown. (Sometimes, older titles like Momotaro have surprisingly light mosaic, but not this one.)