Skull and Bull

A couple of Death Metal fans who are present during the first performance of the zombies, They were from the first appearance of Franchouchou as Death Musume and were impressed with the movement of their heads, so they decided to follow the band one is thin and pale, the other is chubby and warm.

Death metal fans
Complete strangers to the idol fandom, they are initially confused and irritated when the announced darkness turns out to be a facade, only to quickly come to love the girls and their work as much as their other interests.

They become Franchouchou's first dedicated fans after his first performance as Death Musume.

They start out as Death Metal fans, initially sticking to the girls thinking they are a Death Metal group.

During the concert in Episode 9, they comment that the wide variety of different people who show up at their concerts is what Franchouchou is all about.

Appearance
A couple of guys who dress in stereotypical death metal fashion, one is thin and pale, the other is chubby and pale.

Personalities
Complete strangers to the idol fandom, they are initially confused and irritated when the announced darkness turns out to be a facade, only to quickly come to love the girls and their work as much as their other interests. They become Franchouchou's first dedicated fans after his first performance as Death Musume.

When the metalheads witness Saki's kick towards Takeo, the chubby one says that this is the reason why number 2 is the best in his opinion, and states that it must be nice to be hit by number 2, while blushing, Of course.

They both are, showing concern for Ai when she becomes visibly frightened by the lightning in Episode 7 and by the entire gang in Episode 12.