Saeki Sayoko | 佐伯沙夜子 佐伯 沙夜子 | 淫の方程式 夜の方程式 immorality

Sayoko Saeki the teacher at Kyosho Academy. She is known as the Devil Taimanin due to her origin as a Darkstalker specifically a succubus. She is Sonia Aensland's close friend as well as teacher to her students as well as having the son of her own Ryouichi. Her human husband in fact is no other known than Kaoru Ichijou himself due to his big heart she fell in love with him. Now she willingly joined Taimanin in order to protect her family from harm.