Kikkuri

Prince Kail's servant, who goes everywhere with him. Though quite cautious and timid by nature, he is not above conspiring with Yuri's handmaids and working behind Kail's back in order to encourage him to "settle down" with Yuri. In an omake chapter at the end of the story, he writes a horse care manual that is in modern day times discovered in the ruins of the old Hittite empire. From Wikipedia