She later accompanies the rest of the Wei forces for their various campaigns, even as they transition to Jin, and is present in the campaign against Shu at Chengdu that sees their demise.
Believing in her capabilities, he entrusts their remaining family in her hands before he passes on before her very eyes. Though the battle is won, Xin Pi meets with his daughter for the final time and confides his concerns regarding the state of Wei and their family. This reaches it's zenith at the Wuzhang Plains, where she prevents the men from falling for the insults of the Shu forces as they start to crack from stress before her father stepped in to warn them they are playing right into the hands of their enemies.
In Dynasty Warriors 9, Xin Xianying is introduced with her father at Chibi and fights in a few of Wei's campaigns afterwards, doing her father a great service, including Nanjun, Tong Gate, Ruxukou, Hanzhong, slaying Guan Yu at Fan Castle, helping Cao Pi secure his power after Cao Cao passes away, a five-pronged assault on Chengdu, Guangling, and defending New Hefei Castle.