Teruko is intense and boastful. She revels in her power and role among the Hunting Dogs. She has a significantly short fuse and easily intimidates strangers after the initial shock of her youthful appearance disappears. She is aggressive when angered or provoked. Her temper is so extreme that she regularly threatens violent action against people who oppose her, involving evisceration and gutting. She has an abnormal obsession towards the Captain of the Hunting Dogs, Fukuchi Ōchi.