The Result of Finding Out That the Beautiful Girl in My Class Who Hates Men is Actually a Brocon

Mizuno Eiji, a siscon high school student, receives the worst news from his older sister: "I have a boyfriend now."In order to identify the man who stole his sister, he follows her on a date and sees a suspicious figure watching the two of them as well.That person is Hasegawa Aoi, his classmate who is famous for hating men despite being a beautiful girl!"I can't believe you are actually a brocon.""I never thought you are a siscon."In order to make their beloved sister and brother to break up, the two of them formed a mutual relationship and went on a date as fake lovers while following the brother-sister couple Aoi kissed Eiji on the cheek."You're the only one who is special."Brocon x Siscon, two people who shouldn't be able to get along is actually a perfect match!?