Pleiades (プレアデス) is the combat maid squad of the Great Tomb of Nazarick.

In astronomy, the Pleiades, or Seven Sisters, is an open star cluster containing middle-aged, hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. The celestial entity has several meanings in different cultures and traditions.