Some more information on Renka: Renka is the eldest of the Mikagura sisters, and has the temperament of someone from the Edo days, to go with a confident personality.
While her sexy appearance is her forte, she hates girls and cute things. Whenever there’s a ruckus going on, she’s the first to jump in and join in on the action. She’s the type of girl who can always laugh about things even when things get rough.
I would assume she'd be fine with them. I mean, why would it just be girls singled out if she also hated boys as well? If that really were the case, they may as well have said she hates most people in general or something like that.