Sigui is a character character in the series Queen's Blade. A nun and an inquisitor belonging to the Holy Dynasty. A fundamentalist, she is an extremely strict, yet devoted follower of God.
- She have some intimate moments with the other nuns to train them in the church, to make them sit up straight and open their legs wider to demonstrate their allegiance to God, but if she's interested in a nun she trains she'll touch her everywhere because she believes that God lives throughout her entire body, the first special episodes of Queen's Blade: Rebellion is about her special training with Annelotte Kreutz.
- Later on, she has a crisis of faith, but Annelotte helps her and tells her she doesn't have to fight alone anymore. She ends up joining the Rebel Army when she calls Annelotte "Elder Sister" (姉上様/Aneue-sama).
- At episode 4, she decided to lent Mirim a hand when she tripped on the stairs of the sacred church, and showed affecting and care for her by accompanying her into the church asking her to tell her what bothers her, until she detected her unstopping hyper vibration armor she was wearing which she mistakes by a possession of a demon, so she determined to save her from the demon by illuminating Mirim with love and light.
- The 2nd OVA of Queen's Blade, she hugged the devil worshipers leader in order to lead her to the Light and faith in god.