Zhang Xiumei is the fourth daughter of the owner of Zhang Great Sea Trading Company, one of the largest trading companies operating out of Meria Boule. Set neither to inherit her family's company nor with particularly promising prospects for an alliance with the Merian nobility, Xiumei's plan for her life was thrown aside when she synchronized with Model V, an ARM that passed through her the company's warehouses. Afterward, her family worked with Irving Vold Valeria and a childhood friend to find her a place in the newly-created Agile Remote Mission Squad. Xiumei is a cheerful, proper, and outwardly confident young lady, seemingly at odds with the efficient and brutal armor and accouterments granted to her by Model V.