マオ・セイレン

The head of the Rcitine mansion's domestic staff, Mao has served as a surrogate elder sister to Lilica ever since the incident which devastated the household. In addition to running the household, Mao is responsible for protecting Lilica's human body in the mansion. She takes a marked dislike to Judar when they first meet and is capable of dishing out vitriolic verbal abuse with no change in facial expression.

In addition to protecting Lilica, Mao also guards the Rcitine family secrets relating to the Rinshi research. Lilica's father entrusted Mao with the care of his daughter, which Mao takes great pride in as she was taken in as an orphan by the Rcitine family and serves them with unshakeable loyalty in gratitude for their deed. She was however unaware of the true nature behind the incident which left Lilica in her current state and is forgiven by Lilica after her confession.