Immediately after the earthquake, Kazutaka begins working in a clinic that looks like a field hospital. With a keen sense of inadequacy, he visits evacuation shelters and struggles to do what he can as a psychiatrist. He's asked by an old acquaintance who works as a newspaper reporter to write a serial column on what the aftermath of the disaster looks like from the inside. While Kazutaka grows closer to his suffering patients, his father Tekkei's business begins to falter.
Based on the life of An Katsumasa, a Korean psychiatrist who lived in Japan, the dramatic series TO HEAL THE HEART tells the story of one doctor's capacity for love. When the Great Hanshin Earthquake strikes Japan in January 1995, protagonist An springs into action to care for the mental health of others, even though he's a victim himself. An listens to the concerns of earthquake survivors, empathizes with their pain, and eventually becomes a pioneer researcher of PTSD (Post-Traumatic Stress Disorder) in Japan. An's deep bond with his wife, who stays by his side through many hardships, is also depicted, as are the heartfelt ties he forms with his patients.