Ruby was not able to deal with the Void Beasts since she was busy dealing with Mary Jane.
Shadow and several of the Blood Maidens appeared around Ruby to help her while she was busy.
But none of the women actually thought that the Void Beasts were stupid enough to target Fate.
Dozens of them jumped onto the drawbridge and began to surround Fate.
Mary Jane, seeing these creatures covered in human skin clothing and with their fierce white hair and razor-sharp teeth, began to tremble in fear. She called out to Ruby and Fate.
"What the hell are these creatures? Let me go now, Ruby! I have to get out of here. The goddess is telling me to flee from these things."
Fate moved to stand in front of Ruby and deal with these creatures. Fate may not like to handle things himself most of the time, but that does not mean he is afraid of killing when it is necessary.