User blog comment:B214/Talk About What You Want! 2/@comment-24098614-20140705201552/@comment-24502975-20140705220449

Let's see...

Rias, Asia, Akeno, Koneko, Xenovia, Irina, Ravel, Rossweisse (already official just not fully translated yet), are the official harem members (did I miss anyone?). That's 8 so far, and there's also Kuroka/Le Fay who are most-likely gonna be future harem members.