Bijo Gaku (美女学) was a Hello! Project and UP-FRONT WORKS TV show that replaced Bijo Houdan, including Morning Musume., Berryz Koubou, ℃-ute, Mano Erina and S/mileage, airing on TV Tokyo. While its predecessor Bijo Houdan focused on learning from various well-established female experts through a talk show format, Bijo Gaku focused on doing the same, but through extracurricular activities, and experiencing the activities themselves.
小川紗季 (Ogawa Saki) is a former Japanese idol as an original member of S/mileage under Hello! Project. She first joined Hello! Project in 2004 as one of the first Hello Pro Egg members.