Oh she's unusual for sure, but the beetle thing is not that uncommon in japan.
Nene is one of those holomems that don't really have a concise character theme or concept, she's kinda all over the place because of her spontaneous personality and the fact that her original concept of China-Pandering idol from another dimension got completely canned after the Taiwan incident. So now she's a... weird dumbass? I guess? Who tags along with her more thematically concise friends the coolheaded FPS lion, the crazy circus fennec and the Tipsy snow elf.