Sensei (先生) is a supporting character in The Case Study of Vanitas Part 2, voiced in Japanese by Akira Ishida. The series' music includes "TVアニメ『ヴァニタスの手記』第2クールノンクレジットオープニングムービー", "LMYK『0 -English version-』“The Case Study of Vanitas” ver.".