"Love Lasts Forever" presents a captivating romance blooming within a bustling hospital setting. Nanase Sakura, a 23-year-old rookie nurse, embarks on her career driven by a deep affection for Doctor Kairi Tendo, whom she met several years ago. After five years of dedicated study, she finally reunites with him, only to discover a vastly different personality than she imagined. Kairi Tendo, 31, is widely known as "the Devil" due to his levelheaded perfectionism and sharp, critical remarks to colleagues. Undeterred by his intimidating demeanor, Nanase works diligently to gain his recognition and bravely expresses her sincere feelings. Her unwavering persistence earns her the hospital-wide nickname "the Warrior." Amidst her relentless efforts, Kairi Tendo, despite his initial coldness, finds himself increasingly attracted to Nanase Sakura, setting the stage for a compelling and heartwarming love story.