Phobos and Deimos (Crystal)

Phobos and Deimos are Rei's pet ravens. This is their second animated depiction of the original manga character. When Usagi first arrived at the Hikawa Shrine the two crows attacked her and Rei, believing to be an evil spirit, attacked Usagi with a Akuryo Taisan, only realizing immediately after that Usagi wasn't an evil spirit.