Shibazaki Yuzuko

The Life Research Club's adviser and an openly homosexual, 20-year-old teacher. She is androphobic but underneath her soft personality, she is quite sadistic.

Due to being push around and holding back Yuzuko has developed a split personality that is opposite of her kind self. Original rarely came out unless she was made to be extremely uncomfortable. But has become more common the more they push her in club. Her split personality disappears after she is either satisfied/happy leaving her to have no memory what happen during. The protagonist tries to cure her but instead makes it more frequent but less wild and in control, slowly bringing two personalities as one