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Basara's childhood friend Nonaka Yuuki warns him not to get involved with Naruse Mio any longer. She is a fellow member of the hero clan, and the one charged with observing Mio. She claims that Mio will bring great disaster, but Basara proclaims that he will protect Mio as a girl on his own.
Episodes
1The Day I Got A Little Sister 2First Contract Between Servant And Master 3Reunion and a Gap in Trust 4Until Sadness Reaches Zero 5A Little Sister's Morning Demon Lording 6Bearing Growing Emotions 7The Depths of Love and Hatred 8Erotic Succubus Out of Control 9Merits and Demerits of Master and Servant 10Plaintive Betrayal 11Epsionage... What Lies After 12For This Night, This Moment