2x1 Vol. 2

Although not related by , Miyuki and Leda are siblings. Miyuki secretly craves and fantasizes about her step-brother and doesn't want any other girl to have him. Leda has the hots for a girl name Noriko. One day, Miyuki catches Noriko kissing Akiyama. Miyuki fights with Noriko to stop this little affair. At school, Noriko is now known as the town slut who loves to be mixed up in menage a trois. Lucky for her, Leda and Akiyama back her up as being a good girl and they are all just friends who enjoy spending time together. Will she come to accept the fact that her step-brother will only be a figment of her fantasies?