Before the heartblade can strike: "Indeed, I surrender!" Yuki shouts. Stopping partway through the elbow strike that would have resulted in the guard holding Yuki doubling over just in time for the incoming heartblade to hit his head instead of Yuki's breast. 

The action freezes, the guards uncertain. Yuki relaxes in the grip of her new captor. "I surrender to you, [i]Purnima Karn-Pasha[/i]." She says the name with emphasis. "I am the prisoner of [i]Purnima Karn-Pasha[/i]" again, she emphasizes the name. Purnima, not anyone else. Only Purnima. "Through willing surrender in a duel of heartblades. I will provide my service as the prisoner of [i]Purnima Karn-Pasha[/i] as agreed upon in battles of heartblades, until I complete the service demanded, until I am rescued by my allies, or until sufficient time has passed that I may fairly escape. This I swear to [i]Purnima Karn-Pasha[/i]" 

A knight's oath, and a maiden's, and oh Yuki is staring at Purnima and the guards, and she is this close to kicking that piece of shiny armor under the table if need be. But she will [i]not[/i] need to because they will, of course, accept her terms.