Age
20
Mitsuko Taniguchi (谷口 みつ子 Taniguchi Mitsuko?) is Harumi's older sister and a graduate at Aihara Academy, where she was the first Student Council president. Being Harumi's sister, she bears resemblance to Harumi. Like Harumi, she's really tall and has a big chest. She has dark purple hair styled in a bowl cut reaching the height of her chin, with a longer bang on the right side of her face just long enough to touch her shoulder. Back in her Aihara Academy days, she had longer hair, which she kept in a ponytail. Mitsuko is a cold and serious person, similar to Mei. However, unlike Mei who can be concessive, she firmly believes that the school's rules should be kept at all costs. According to Harumi, during her time as the student council president, she ruled the school with an iron hand. However, she is capable of being kind to certain individuals.
Citrus
During the summer of her freshman year of high school, Yuzu Aihara's mother remarried, forcing her to transfer to a new school. To a fashionable socialite like Yuzu, this inconvenient event is just another opportunity to make new friends, fall in love, and finally experience a first kiss. Unfortunately, Yuzu's dreams and style do not conform with her new ultrastrict, all-girls school, filled with obedient shut-ins and overachieving grade-skippers. Her gaudy appearance manages to grab the attention of Mei Aihara, the beautiful and imposing student council president, who immediately proceeds to sensually caress Yuzu's body in an effort to confiscate her cellphone. Thoroughly exhausted from her first day, Yuzu arrives home and discovers a shocking truth—Mei is actually her new step-sister! Though Yuzu initially tries to be friendly with her, Mei's cold shoulder routine forces Yuzu to begin teasing her. But before Yuzu can finish her sentence, Mei forces her to the ground and kisses her, with Yuzu desperately trying to break free. Once done, Mei storms out of the room, leaving Yuzu to ponder the true nature of her first kiss, and the secrets behind the tortured expression in the eyes of her new sister.
