Abel (アベル) is the name of Seth's small squirrel in the manga. He is first seen on Seth while she appears before Ion and Esther in Anadolu, and is later seen to be the one that helped lead Astharoshe and Abel to Ion when he was attacked by Radu. It appears he is named after Seth's brother, Abel Nightroad.
After the squireel witnesses Seth in her Crusnik form, it hisses away from her in fear.