First Lieutenant Rowell Su-ming serves as an intelligence officer in the Special Development Command (SDC) unit. Her primary duties involve intelligence analysis and mission support for operations to retrieve a symbolic stolen UN flag in the Uddiyana conflict zone. Embedded with frontline photojournalist Saeko Shirasu as part of the core SDC team, Rowell analyzes field data, assesses threats, and provides tactical intelligence during missions involving HAVWC mecha units. During one critical operation, she pinpoints the stolen flag's location through meticulous analysis of photographic evidence, enabling its retrieval. When UN investigators halt SDC activities, she supports Captain Eversalt's decision to proceed with an unsanctioned fact-finding mission into an armed faction's stronghold, contributing vital intelligence despite risks of disciplinary action. Rowell later participates in the counterattack to retake the seized UN headquarters. Her portrayal remains focused on her role as a dedicated intelligence professional throughout the series.