Mimiko Katsuragi (葛城 ミミコ, Katsuragi Mimiko) is one of main characters of Black Blood Brothers. She is human compromiser who is sent out to mediate the relationship between humans and vampires.
Mimiko and Alice have similar ideals, she is a strong and independent woman, who tries to understand Jiro's situation and shows that she holds no prejudice against any race.
She was an orphan that was raised by the Order Coffin Company, her direct superior Jinnai Shogo, which she now works under. She also works alongside Hibari Kusunogi, but she's not to keen on her obsession with gossip.
Even when she was taken hostage by Cassa, she was intrigued by the conversation she had with her and expressed a desire to talk to her again.
She appears to have a crush on Jiro, this would explain why she blushes when she sees him, and allows him to drink her blood when he desperately needed strength.