Things get even less explainable when the gang investigate a giant anime store that has opened in town, get sucked into a featureless room, cosplay, and fight a man with a cube for a head.
I think this is a reference I don't get.
Kautz does wear the boomerang panties though.
A copy of the shop opens up and outcompetes them!
Clearly the appropriate response is to challenge the owner to an idol contest.
Singing the OP doesn't really work, because it isn't sung. Or maybe that's good?
Their enemy fades away with vague words of wisdom.