Citrus is an ongoing yuri manga series that offers a bittersweet love story coupled with gorgeous artwork. Fans of Morinaga Milk's Girl Friends will find themselves enthralled with Citrus' unique blend of comedy, melodrama, and secret desire between girls. Yuzuko Aihara, a high school girl whose main interests are fashion, friends, and having fun, is about to get a reality check.

Due to her mum's remarriage, Yuzu has transferred to a new, all-girls school that is extremely strict. Her real education is about to begin. From Day One, happy-go-Iucky Yuzu makes enemies, namely the beautiful yet stern Student Council President Mei.

So what happens when a dejected Yuzu returns home and discovers the shock of her life: that Mei is actually her new step-Sister who has come to live with her? Even more surprising, when Mel catches Yuzu off guard and kisses her out of the blue, what does it all mean?