Ogasawara, Sachiko

小笠原祥子

Prim and elegant, Sachiko possesses both a rough side and a very sweet one. She is highly protective of Yumi and cares deeply for her. However, Sachiko often shares the same problem as Yumi: she does not share most of her troubles with her sœur, which leads to many misunderstandings. Sachiko is scheduled to marry her cousin and fiancé, Suguru, after graduation. This arrangement causes her distress because, although she initially cared deeply for him, he did not reciprocate. Their relationship is now complicated.
At times, Yumi must teach Sachiko how to live informally, such as helping her choose her first pair of jeans. Despite her occasionally stern appearance, Sachiko harbors insecurities about her relationship with Yumi, as well as emotional insecurities stemming from her home life; both her father and grandfather openly keep mistresses, unabashedly dividing their time between home and these women. This apparently led to her general disdain for men, as shown in the OVA series during a meeting with the student council members of Hanadera, an all-boys high school.
After entering her third year, Sachiko becomes the new Rosa Chinensis. Following Touko's arrival, Sachiko spends more time with her than with Yumi, making Yumi jealous. Sachiko's absence from school worries Yumi. Later, Youko is sent to "bring" Yumi to Sachiko's grandmother's house. Yumi discovers that Sachiko's grandmother recently died, which plunges Sachiko into depression. Sachiko apologizes for the past few weeks and asks for Yumi's forgiveness; Yumi responds that she loves her very much.
At the start of the summer holidays, Sachiko takes Yumi to her summer home. While there, Sachiko's acquaintances cause trouble for them. Yumi intends to leave, but Sachiko refuses. The acquaintances hold a party and invite them. At the party, they ask Yumi to play a musical instrument for Sachiko's great-grandmother. Yumi states that she cannot play anything and prefers to sing the song "Maria-sama no Kokoro"; Sachiko accompanies her on the piano. The great-grandmother is happy because the song evokes memories, and she asks Yumi to visit next year.
In the first season, Sachiko is Rosa Chinensis en bouton, her grand soeur is Mizuno Youko, and her petite soeur is Fukuzawa Yumi.
In the second season, Sachiko becomes Rosa Chinensis.