Tsuchimikado Touzu

Tsuchimikado Touzu (土御門冬頭), born 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
Touzou's real last name is derived from, an in the  and rival to the famous , ancestor of the Tsuchimikado clan.

His first name is part of the theme of the Tsuchimikado family being based on seasons. The 'tou' part of Touzu (冬頭) 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.