Rosa Canina
A second-year student calling herself Rosa Canina runs against the en boutons in the Yamayuri Council elections with murky intentions. Todo Shimako hesistates to run at all due to her first-year staus and her reluctance over taking a leading council position until a talk with Rosa Canina forces her to make a decision. Yumi confronts Sato Sei, Shimako's soeur, over her refusal to encourage Shimako to run, and learns more about the relationships between older and younger soeurs and how to best support Sachiko.
Aired 12/02/2004EP 6 - Rosa Canina

Maria Watches Over Us
At Lillian Girls’ Academy, a renowned all-girls Catholic school, pairs of girls become soeurs, or “sisters”, in order to support and guide each other during their time at school. The shy Yumi Fukuzawa thought she was far too ordinary to attract a soeur as popular and beautiful as Sachiko Ogasawara, but for some reason, Sachiko has set her sights on Yumi — but why does she want to become Yumi’s soeur, anyway, and just what will become Sachiko’s soeur entail?
(Source: Maiden Japan)