Oooh I didn't know it was common knowledge in-universe that Rena and Miyu are dating! Or did I just forget... Anyway it was nice to see :D Library girl's stereotyping thoughts about gyaru annoy me a little, but it's not like that conception is anything rare;;
"You have the right to be proud of loving what you love" what an apt thing to say in a yuri manga, now be proud of loving what you love and go kiss your girl