Well, technically, Emil is the squishy part of Ratatosk! So, he has the capability to be that squishy! He just completely cut it off from himself because he couldn't deal with betrayal very well. It's kind of fascinating in that, "So... you limited yourself to untold rage because that's better than feeling sad. Good. Job. Ratatosk."

WELL, TELL ME ABOUT CASS AND YUKIO THEN!!