Nagi Kirishima (桐島凪) is a fictional character from the Bloody Roar series.

Her beast form, Spurious, in biological terms, means a structure that has a comparable appearance but nonetheless has a diverse structure. This identifies what she shares similar powers with the Unborn. She appears as one of the main characters in Bloody Roar 4. As part of its power in the real world, The Unborn seems to be able to take the form of the dead, as they are part of the "unborns".