In the midst of a brutal civil war in the mountainous nation of Uddiyana, a single photograph dubbed 'Flag' sparks a glimmer of hope for peace. Various factions rally behind this iconic image, prompting a push for a ceasefire. However, when a mysterious guerrilla group steals the symbol of unity, a specialized U.N. unit equipped with advanced technology, including the HAVWC system, is deployed to retrieve it. Saeko Shirasu, the journalist behind the 'Flag' photo, joins the mission to document the pursuit of peace and unravel the secrets of the conflict. Follow the journey of this peacekeeping team as they navigate challenges and seek to uncover the truth in their quest for reconciliation.