Please, have a seat. There are plenty of dishes to feast upon, and your company is welcome. If you are lost and stumbled here by accident, receive a complementary napkin at the reception desk. It has a spaceship on it.
My headcanon is that Othergirl-sempai is actually a very socially aware critical thinker and doesn’t give a crap what people think of her based on her looks. She earned every penny she spent on modding that bod.
Meanwhile, Normal-chan is well-meaning but naive and shallow fangirl who can be quite bratty. Despite having quite low self esteem, she still thinks she’s better than everyone else. It’s complicated.