The rest of the Yamayuri Council find out that Yumi finally accepted Sachiko's rosary. Meanwhile, Shimazu Yoshino and Hasekura Rei are voted the school's best sœurs due to their respective girly and bishonen appearances, but Yumi talks to Yoshino and finds out that there's more to the pair than meets the eye and that the relationship between the two is far from perfect.

After a crying Yumi runs away from Sachiko's confrontation, Sei reveals the secret reason behind Sachiko's distress. The treasure hunt takes place with surprising results. and Yumi makes up with Sachiko in her own unique way.

Sei takes Yumi to visit Sachiko's house on New Year's Day where the Yamayuri Council have a party. All the major characters are reintroduced, and with the start of the New Year, Yumi looks happily forward to spring.

Graduation day arrives. As the rest of the Yamayuri Council struggle with conflicting emotions, the Rosas reflect on their lives and the memories which shaped them.

Yoshino takes advantage of her newfound health by joining Rei's kendo club, causing extreme worry on Rei's part and another roadblock in their relationship.