白鳥 咲

A final year student at St. Marianne's Academy who volunteers at Kiyoharu's church on a part-time basis. She is the Representative of the entire student body and is respected and admired for her ability to listen to and resolve the concerns of all students without prejudice.

Although Kiyoharu values her assistance, she has a tendency to go overboard when someone is in need and has to be gently restrained before she goes out of control. Kiyoharu knows this and has learnt to gently bring her back to reality.

Her request to see the totem of Kiyoharu's church as a reward for keeping watch on his behalf after one of his late night exorcisms is partly responsible for the events early on in the game.

 Saki's drive to help others whatever the cost to herself stems from her childhood experience. A normal child with no special spiritual powers born into a family in charge of another church, she witnessed the good deeds of her parents but was frequently left in the care of her grandparents for long periods and was lonely as a result. Her drive to help others and the skills she acquired to serve others better are later diagnosed as her innate desire not to be hated by anyone; this causes problems later on during her route in the final stages of the exorcism cycle.

Unlike her two juniors, she is the only one who doesn't have an alternate ending.