Hakoiri Shoujo: Virgin Territory  

箱入少女-Virgin Territory-

Sakuraya Academy is an elite high school for girls that has strict admission requirements to ensure it admits only the daughters of the wealthiest social class. Kannari Masayoshi is a popular and cool teacher at the academy who enjoys having all the students adore him. However, his popularity also allows him to have romantic relationships with many of his female students, including Kirihara Yukino, whom he now has his sights set on.