Synopsis

Sachiko Ogasawara, a brilliant and refined student at Lillian Girls' Academy, hides a troubled personality behind her status as the school idol. She has a deep aversion to men and is revolted by the idea of having to dance with a male student for the upcoming school play. Desiring to step down from her role, she proposes to the Yamayuri Council, Lillian's student council, that she will instead prove her worth by finding a petite sœur—an underclassman who becomes the protegee of her grande sœur. To the bewilderment of all, Yumi Fukuzawa, the first-year student Sachiko invites to become her petite sœur, refuses the proposal. However, senior Yamayuri Council member Sei Satou proposes a challenge: if Sachiko can convince Yumi to become her petite sœur, she can withdraw from the play. Although Sachiko often struggles to connect with others, she endeavors to do everything in her power to win Yumi over. [Written by MAL Rewrite]

Episodes

13 Good Day, Dear Sister Gokigenyou, Onee-sama (ごきげんよう, お姉さま) 1 Apr 2004
12 The First Date Triangle First Date Triangle (ファーストデートトライアングル) 25 Mar 2004
11 The White Petals Shiroki Hanabira (白き花びら) 18 Mar 2004
10 The Forest of Briars Ibara no Mori (いばらの森) 11 Mar 2004
9 The Red Card Akai Card (紅いカード) 4 Mar 2004
8 Surprising Chocolate: Part 2 Bikkuri Chocolate: Kouhen (びっくりチョコレート・後編) 26 Feb 2004
7 Surprising Chocolate: Part 1 Bikkuri Chocolate: Zenpen (びっくりチョコレート・前編) 19 Feb 2004
6 Rosa Canina Rosa Canina (ロサ・カニーナ) 12 Feb 2004
5 The Fighting Maidens Tatakau Otome-tachi (戦う乙女たち) 5 Feb 2004
4 The Yellow Rose Revolution Ki Bara Kakumei (黄薔薇革命) 29 Jan 2004
3 The Moon and the Rosary Tsuki to Rosary (月とロザリオ) 22 Jan 2004
2 The Unnerving Duet Munasawagi no Rendan (胸騒ぎの連弾) 15 Jan 2004
1 The Troubling Declaration of Sisterhood Haran no Shimai Sengen (波乱の姉妹宣言) 8 Jan 2004