Tsuchimikado Touzu

Tsuchimikado Touzu (土御門冬頭), Ashiya Touzu (芦屋冬頭), is a man from Necessarius who was forced to change his family name to play the part of being a family member of Tsuchimikado Motoharu along with Urabe Bishu.

Etymology
His name is part of the theme of the Tsuchimikado family being based on seasons. Part of his name can be translated as winter (冬).

Background
After Tsuchimikado Motoharu was tasked with becoming a spy for Necessarius in Academy City and becoming an esper, Touzu was apparently tasked  to play the role of one of his family members, not liking that he was forced to change his name.