Last week's lore in case anyone missed it:
>The Gyaru Squad
>They were the popular girls in Chiharu and Makina’s class when they were in 5th year of middle school. They once targeted Makina for being unsociable, but she was too intimidating to do anything against directly so they harassed her only friend, Chiharu. Makina wouldn't let that stand and threatened the three of them, after which they didn’t dare mess with her again. While the girls' relationship with both Makina and Chiharu generally remained bad during their school years, there was one time Makina beat up badly a boy who got violent with Erica.