Lan is seven years older than Tiezhu. To help him escape their mountain village, she mortgaged her house, pawned her silver bracelet, and took on the debt alone—all while hiding her love behind the words "I think of you as a little brother." Three months later, Tiezhu returns and finds her being forced into marriage by a local thug. Facing debt rumors and accusations of cheating, he steps forward to protect her and bravely confesses: it's not gratitude—he wants to marry her. One fears holding the other back; the other refuses to back down. Can they overcome societal prejudice and turn their mutual devotion into a lifetime of ordinary, enduring love?