On the day of the Marquis's party, the Lady gets ready in the outfits chosen by Lou Vandes and wedding rumors circulate. She hides her weapon under her skirt; because of the alchemist Themis, a clash may break out at the party between the Guards and Catacle. She attends the party posing as Lou's fiancée and meets Marquis Biden, then follows a suspicious person slipping away from the crowd into the forest and catches the smell of gunpowder.