Amidst the chaos of war, Ethan Vance is separated from his childhood friend, Seraphina "Sera" Dubois. When they reunite, Seraphina "Sera" Dubois has become mute and joined the Vance family. Amidst misunderstandings and emotional entanglements, Ethan Vance recognizes Seraphina "Sera" Dubois, and together they face family conspiracies and the challenges of wartime.