I'll add some more praise for Kobayashi-san, this episode was bliss.
I don't know if Minami Kamakura is supposed to be a slice of life anime with a sports arc, or a sports anime that started out really slowly. I don't mind either way, but I'm getting confused. And the girls' strongest opponent is... a weirdo in a bear costume?
Last week's Urara Meirochou all but wrote Nina and Saku's names under one umbrella and drew little hearts all around it. This week, Nina asked Saku to spend the night with her. Take that as you will.
The timing of the segment about Koume's backstory made it seem like they looked at the previous episode and went "haha no hetero". Sure, you could dismiss her feelings as childish idealization, but her narration and the way she immediately went tsundere at such an innocent statement as "you like witches" don't encourage this line of thinking.