Kanetsugu Gasou
Kanetsugu Gasou, also known as "Makabe" in previous years, is a son of a rich industry. He is one of Adagaki's love interests and her fiancee. His fiancee believes that this Makabe is the Makabe of her childhood, so he pretended to be her Makabe and got engaged to stop his family from going to depression. It is later revealed that he is actually female. (Source: AkatsukiUlquiora, edited)