Coincidentally, two portals appeared on Vincent mansion's living room at the same time, from one, Daimon's group came out, with Aurora bringing the new prisoners restrained with her light chains.
The other one was used by Vincent, Annete and the Valas Duchess to return from the Delphini territory, the Duchess was given her own task by Annete, she had to watch out the perimeter of Carlos's mansion along with Martha who also accompanied them.
It's not that she was lacking the strength to participate in the operation, but Annete wanted to make Carlos despair with her own hands, that's also why Vincent was turned into a thug who beat up the secret protectors of the Delphini raised by the Duke, while the Duchess acted as a vigilant.
And that seemed to have improved her mood, she was brightly smiling, as if she hadn't just beaten a middle stage Stellar ranked an inch away from death a moment ago.