Mary, who Aoi is earnestly pleading to join Full-Bloom, finds an unexpected enemy standing in her way: Sakura Miharutaki. As Aoi's fiancée, she seems to harbor complex feelings toward Mary, to whom Aoi is deeply attached. On the eve of the duel, an unexpected visitor comes to see Mary—it's none other than Sakura Miharutaki. "Don't show up to the duel tomorrow," Sakura says, offering Mary a substantial sum of money, enough to cover the Literary Club's gambling venue fees and Tsuzura's housepet release costs, in return. Furthermore, she begins to talk about Aoi's past. Mary is thrown into confusion by Sakura's surprising actions. Will she accept the offer? Or will she face Sakura in the decisive duel? What choice will Mary make?