Identical twins who attend the Hanadera boys' school. They are on the student council and are friends with Fukuzawa Yuuki (Fukuzawa Yumi's younger brother). First introduced during the cross-festival meetings held by Lillian Jogakuen and Hanadera. Their large, foreboding presence scares Ogasawara Sachiko who has androphobia, but they are no more than quiet giants who speak mostly in unison.
Ono no Imoko (å°�野妹å�, Ono no Imoko?) was a Japanese politician late 6th and early 7th century, during the Asuka period and was the appointed Kenzuishi to the Sui Court in 607.
A big fan of Yumi Fukuzawa, who only made a brief cameo appearance in the second season of the anime. She is 178 cm tall, and referred to by Marimite fans as Denpa. She is presented as one of the girls who may become Yumi's petite s�ur. She is introduced in the fourteenth novel, Suzukaze Satsusatsu. (Source: Wikipedia)
A classmate of Yumi's brother Yuuki at Hanadera Academy, "Alice" (as she is nicknamed throughout the series by her friends due to her feminine manners) is a good-natured and lively young trans girl whose only issue is that her inner, feminine identity is at odds with her male biological body and her typically virile given first name, Kintarou. She is a great fan of Sachiko's (going as far as saying that she had rather been born as a girl and gone to Lilian to be Sachiko's petite sœur). She seems to be good friends with Yuuki, and as a member of the Hanadera Student Council, gets to interact with the Yamayurikai for their respective school festivals. Sachiko's decision to switch the player's genders in the schoolplay at the Lilian Culture Festival overjoys her, as it gives her the opportunity to act a female part.
A distant relative and fan of Sachiko. She arrives at Lillian during Yumi's second year. Touko is a member of the Drama club, and nicknamed Mechanical Drill by Satou Sei for her corkscrew pigtails. In the beginning of her first year Touko causes some strain in the relationship between Yumi and Sachiko. However, it is apparent later on in the year that she may become Yumi's petite soeur. (Source: Wikipedia) Touko later wins the second card hunt when she half-accidentally makes Yumi uncover her card, thus winning the date with Yumi. She does so by basically asking Yumi to make her a petite soeur, and the recurring date practically ensures that Touko will become just that. In the same episode, we learn that Touko is also not the real daughter of the Matsudaira family, which made her the target for a lot of harsh words from the other close families. Despite this, her adopted family loves her like she was their own biological daughter, who adopted her after her parents died in a car crash, leaving her as the sole survivor. It's also revealed that Touko wants to take over the family hospital after her grandfather, but she wasn't allowed to do so yet, due to her young age. She will most likely be given that opportunity at a later date, though.
A young girl with a fascination with Buddhist statues and art. She enters Lillian Academy (a strictly Catholic institution) by mistake. She has a fierce temper that contradicts her calm exterior and becomes Shimako's petite soeur as Shimako enters her second year. (Source: Wikipedia) In the second season, Noriko becomes Rosa Gigantea en bouton, her grande soeur being Toudou Shimako.
Rei's grande soeur; one of the most well-respected of the Yamayurikai. She is very gifted and good at almost everything, although she is also enigmatic and eccentric. She has a large forehead, which Sei made fun of when they were young, which began their rivalry. She said once that she chose Rei as her sœur to see if anything interesting would happen. She often has friction with Yoshino, as the younger girl is jealous of her bond with Rei. Eriko has four older brothers. After leaving Lillian, she studies Arts. She hates the dentist above all else. (Source: Wikipedia)